Tom Clancy's Rainbow Six: Shadow Vanguard: Shadow Vanguard is a completely original game in Tom Clancy's Rainbow Six universe, built from the ground up for play on the iPhone and iPod Touch. A whole new three-man Rainbow team faces down the latest international terrorist threat, each member focused on a particular specialty: Stealth, Recon, and Demolition. Players can strategically tackle a well-organized terrorist group across 11 story mode missions either by themselves or with up to two friends via online or local multiplayer. $7

Halftone: Its aim is straightfoward: make your photos look like comics. You can import one from your photo roll or snap one in the app. From there, you can control the type of paper-all a bit weathered and crumpled, natch-the size of the ink dots, and the caption composition, fonts, and texts. It ends up looking quite nice. $1.

Google Mobile: The Google Mobile App got a complete revamp complete with a new name: Google Search. The app is more than a glorified web-site-in-an-app now, with snazzy gestures that reveal a toolbar with specific search options (Images, News, Shopping, etc) and the usual voice search and Goggles options. Free.

Sr. Mistu: There's not much to it: you use your finger to trace a route for Sr. Mistu and his pup as they attempt to wind through moving cars, strolling-pushing parents, falling plants and pianos, and myriad other obstacles, all the while collecting delicious, delicious olives. What sets Mistu apart, though, are its gorgeous, hand-drawn levels; the gameplay itself might not be anything very special, but it has a visual style that totally sets it apart, especially once the journey takes you underseas. $1.

Socialcam: Built on top of JustinTV's mobile live streaming infrastructure, Socialcam, available for iOS and Android, takes the guesswork and legwork out of sharing smartphone video. When you first fire up the app you'll have to login with Facebook, whereupon it'll show you which of your friends also happen to be using Socialcam. From there you can get involved in the Socialcam ecosystem—adding friends (whose videos will populate automatically in your stream), liking and commenting on videos, and sharing your own uploads with your Socialcam pals. Free.

Looktel Money Reader: If you've traveled abroad, perhaps you noticed that different denomination bills had different physical sizes, a design intended to allow people-especially the blind and visually impaired-to distinguish how much a bill was worth just by touching it. American currency has not followed this lead! LookTel Money Reader seeks to solve the problem via smartphone: Just fire up the app and point the camera at any bill-$1 up to $100-and it'll announce what denomination it is aloud. $2.

Baseball Prospectus: Bill James's Baseball Prospectus is one of the more revered texts among fans of sabermetrics and fantasy baseball. It's not just a compendium of every stat-for every player-you can think of. It's also the home of the essential PECOTA projection system, a generally reliable way to foresee who's going to have a monster year and who's due for a decline. $15.

QuickShot: Snap a pic; upload it to Dropbox. All the usual camera settings and functions are included in the app, but as it uploads to your Dropbox account, you won't clog up your valuable memory. Multiple photos can be queued up for uploading in the background, so you can get on with other things. While QuickShot only handles photos at the moment, video support will be added to the $1 app shortly.

Spout: Kinetic typography has a way of making any random group of words look super important, and Spout is no exception. It takes your Facebook, Twitter and Google Reader feeds and turns posts into well-designed animations, which are then presented in real time or on a cycle, based on your preference. Even the dullest tweets become emotionally-charged works of art. Who knows, maybe now you'll actually care what your old high school friends are up to. $1.

Hobo With a Shotgun: The Game: You're familiar with Hobo With a Shotgun by now, aren't you? What started as a joke trailer in Quentin Tarantino's Grindhouse was later turned into a real movie that should be hitting theaters next month. Until then, you're strongly encouraged to get your homeless vigilante on with the 8-bit HWaS iOS game. The three dollar price tag is kind of a bummer, but can you really quantify justice? $3.