You may have already checked it out, but for my last iPhone app post of 2009, I listed most of my favorite games of the year. I tried to have something for everyone and I think it went over pretty well, but I didn't get everything. At the end of the post, I asked if anyone caught any glaring omissions and readers were quick to remind me of some of the best games last year and also tipped me off to a few I never had the chance to check out.

For my first few posts of 2010, I think it's worthwhile to call out some of these great games in case you missed them, too. If something really big comes out I'll write about it here, but expect to see some hits from last year that will hopefully also be new to you.

This week's apps include an image-editing app that puts cool retro effects on your pictures and a zombie-killing first-person shooter that is among the best in its genre.

Hipstamatic ($1.99) turns your iPhone's digital camera into an old-school single-shot camera of the past to give your images that grainy, washed-out (in a good way) retro look. The interface is a bit confusing at first, but you'll soon figure out how to switch between different types of retro film, different types of lenses, and even effects for different types of flashes. You can switch between each of the different variables with a swipe of your finger, with dramatically different results depending on the combination you choose before taking your snapshot.

I've reviewed image-enhancing apps here before, but Hipstamatic is the first that gives you control over which lens, film, and flash type you're using for each shot. When you're done taking the picture, the app lets you view your images side-by-side to see how each effect changes the result. Like many apps these days, Hipstamatic offers more lenses, film types, and flashes you can purchase from within the app, so if you like what you see in this download, there's plenty more to play with. Overall, if you want that retro look or just like to play with your images, Hipstamatic is a great choice.

Call of Duty: World at War: Zombies ($9.99) is a reader favorite of 2009 for its zombie-killing action and smooth 3D graphics, and it is quickly becoming a favorite of mine as well. Choose between three different control types with variations that rely on the iPhone's accelerometer and the now-familiar onscreen control pads. To get used to the controls, Call of Duty: World at War: Zombies provides a short tutorial with instructions for loading, firing, and switching your weapon and some of the commonly used controls in the game. Once the tutorial is over, the game lets you know you're on your own, adding to the drama of the coming zombie apocalypse you're about to experience.

There are several great first-person shooters available for the iPhone, such ase Eliminate Pro, N.O.V.A., and Modern Combat: Sandstorm, all of which I included in my favorite games of 2009. But Call of Duty: World at War: Zombies does a particularly good job of dropping you into the action, with smooth 3D graphics and creepy music and sounds, to make it a uniquely engrossing experience. The game also features multiplayer over Wi-Fi at this time, but the developers promise more multiplayer options and new maps to be released as downloadable content in the future. If you like FPS games or just like blowing away zombies (who doesn't?), I highly recommend this game.

What's your favorite iPhone app? Do you think Hipstamatic is true to the cameras and lenses of yesteryear? Is Call of Duty: World at War: Zombies the FPS to rule them all? Let me know in the comments!

Mozilla has finished its second release candidate for its first mobile Firefox browser. Firefox 1.0 for Nokia's open-source Maemo platform can't be far behind.

In addition to fixing "a major performance issue" plaguing the Nokia N900, Mozilla has also updated the latest version of the Gecko layout engine. By using the same version of Gecko that's driving the forthcoming Firefox 3.6 RC1, Mozilla is keeping parity between the mobile and desktop versions of its browser.

Mozilla is expected to push out an update for Web surfers who have already downloaded the first release candidate into their Nokia N900 or N810 devices. You can also download the RC2 directly from the mobile browser.

With the advent of 4G bandwidth, the time may finally be ripe for high-data mobile video calling to take root. That's what video chat company OoVoo is banking on: it just announced its intention at CES to translate its desktop and Web video chat interface to the mobile phone.

Oovoo's desktop video-calling apps (Windows|Mac) can handle up to six conference-call lines at once, and can record conversations, to boot.

We can only guess at this point if video conference calls will figure into OoVoo's mobile app, since it won't even have a product to formally demo until February's Mobile World Congress in Barcelona. We did find out, however, that OoVoo's mobile app will work over data and Wi-Fi; the pricing model is still hazy, but there will be a free trial; and OoVoo plans to announce U.S. partners at CTIA in late March.

OoVoo isn't the first to conceptualize mobile video calling, but it stands a better chance than an app like iVisit Mobile, an attempt for Windows Mobile phones that never broke beta or caught much air.

Originally posted at 2010 CES

It's the same sad story: You're cruising along the Interstate, hungry for lunch, so you pull off at the first exit that has food--and end up at Burger King. (The horror. The horror.) Then you get back on the freeway, only to discover there's a Panera Bread at the very next exit. And a Chik-Fil-A! Oh, wretched fate.

Allstays.com's new iExit for iPhone shows you all the points of interest for upcoming exits: food, gas, lodging, auto repair, grocery stores, and so on.

Granted, any GPS (or GPS app) worth its salt will provide similar POI data. But iExit makes it freeway-friendly, so you can easily see what's at the nearest exit, the one after that, the one after that, and so on.

The app affords one-tap calling for most locations and lets you create a list of favorites to track--great for determining, say, how long until you hit the next Starbucks.

Watch the embedded video to see the app in action, then answer me this: Think you'd use iExit? More to the point, would you pay the $2.99 introductory price for it (or the $4.99 future price)?

I'm not sure, especially considering that apps like AroundMe and Yelp provide much the same localized information for free.

On the other hand, there's something to be said for this kind of convenience, especially if you're a serious road-tripper. In any case, do yourself and your fellow drivers a favor: let a passenger operate the app.

While we're on the subject of travel, check out Five must-have apps for your next trip.

Originally posted at iPhone Atlas