I am currently using the iOS 4 on my 3G iPod Touch and thus I can say that the app works on iOS 4.0 operating system.

Capital FM Description from iTunes

Download App from Here

The story revolves around a tournament where combatants fight for their lives: the Ark Arena. Upon choosing a pair of characters, one male and one female, you will then have to fight against the other pairs. Each pair has their own story, and the truth behind the Ark Arena will not be revealed until each story is completed.

Game Features

• -Amazingly smooth 3D graphics
• -Gorgeous sound that takes full advantage of the iPhone and iPod touch’s powerful hardware
• -A deep story with unique twists for every pair and multiple endings
• -Traditional game and battle systems polished to perfection
• -Hours upon hours of gameplay, complete with hidden bosses, secret weapons, and more

Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iPhone OS 3.0 or later.
File Size :253 MB
Price : $12.99

iTunes Link Below

History Behind Hipstamatic

Back in 1982, the Hisptamatic was legendary- well, with at least a few hundred small town kids in Wisconsin. Known for its ability to swap lenses and take multiple film formats, this plastic camera was well on its way to being a big deal. Sadly less than 200 cameras were produced. Today, a digital reproduction is brought to the iPhone with lots of added features.

Digital photography never looked so analog. The Hipstamatic brings back the look, feel, unpredictable beauty, and fun of plastic toy cameras of the past! The Hipstamatic keeps the the quirks of shooting old school but gives you the ability to swap lenses, film, and flash settings all with the swipe of a finger.

Characterized by vignettes, blurring, over saturation, discolored images, Hipstaprints have a casual and seemingly accidental snapshot feel. The Hipstamatic can be downloaded to any iPhone sporting the 3.1 or beyond software update. For $1.99 you can download the base model Hipstamatic 150 which includes the John S, Jimmy, and Kaimal Lenses, as well as Blanko, Ina’s 1969, and Kodot Verichrome film and two standard flashes complete with humming sound. Additional lenses, films, and flashes are bundled within the app as ‘Hipstapaks’ and start at 99 cents. Each Hipstapak includes multiple items.

Pictures taken with the Hipstamatic have their very own look and unique character. Artistic and painted with light and quirk, Hipstamatic images are sometimes surprising and offer a delicate beauty turning any iPhone into an instant art making machine. Images can be uploaded directly to Facebook, Flickr, or emailed to your friends and family..

What’s New in Latest Version 150

Performance Improvements

• Full resolution support (1200px square for 2G/3G, 1536px square for 3GS)
• Faster startup time
• Misc user interface improvements

Sharing Improvements

• Prints can now be posted to Flickr in-app

New Features

• Save favorite combos: A new button in the Gallery lets you “change camera lens, flash, and film to match this print”
• Shake-to-randomize: From the viewfinder you can shake your Hipstamatic to select a random lens, flash, and film
• Prints now have EXIF data with lens/flash/film information (accessible from within Hipstamatic only – not Photo Library)
• Film preview window on camera back
• Improved HipstaProcessing for greater variety in prints

New Flash and Films

• New free flash: Dreampop
• New HipstaPak: Camden (includes Alfred Infrared Film and BlacKeys SuperGrain B+W Film)

Bug Fixes

• iPod music will now keep playing when opening Hipstamatic
• Fixed a bug where occasionally the flash would not fire, even when charged
• Other misc fixes

iTunes Link Below

Official Description from the Company

Suit up and rocket into the action as Iron Man or War Machine in the official movie game on iPhone/iPod touch.

PLAY WITH IRON MAN OR WAR MACHINE
Play as Iron Man for speed and agility or suit up as War Machine for maximum firepower. Both suits offer easy-to-learn controls and the ability to run, hover and fly at will. You’ll also have the chance to jump into the Mark IV, Mark VI, Stealth and underwater suits. Whether you prefer to pound your foes in melee combat with your fists or to lay down the destruction from a far with your weapons, you can upgrade your suit after each stage with improved weaponry and abilities to devastate your foes.

A BLOCKBUSTER GAME
Based on the most anticipated film of the year, Iron Man 2 delivers all the same action and excitement you’d expect from the movie with epic battles and massive enemies that will leave your chest pounding.

STARK OPPOSITION
Tony Stark’s enemies have their own super suited droness and they want to take Iron Man and War Machine down. Fight Ultimo, Firepower, Whiplash and armies of other enemies to prove that the only the original armored hero is the best.

THIS FIGHT IS GLOBAL
Battle across 9 locations across the globe constructed in full 3D, from Stark Expo in New York to a jungle war zone in Somalia.

HEAVY METAL
Get charged for battle with a powerful rock metal soundtrack including the rock classic, “Iron Man”.

ACHIEVE GREATNESS
Connect to Gameloft Live and unlock 25 different achievements that you show off to friends and prove you’re a real Iron Man.

The Bottom Line is that the game has been released and getting mixed amount of reviews from users. If you plan on purchasing this game it costs only $6.99 for iPhone and iPod Touch Versions

Requirements of Game : Compatible with iPhone, iPod touch, and iPad. Requires iPhone OS 2.2.1 or later.

Languages: English, Chinese, French, German, Italian, Japanese, Korean, Spanish

• Version: 1.0.0
• 1.0.0 (iPhone OS 3.0 Tested)
• 240 MB (Game File)

itunes Link Below

Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iPhone OS 3.0 or later.
Rated 4+ : Because every one can use it.

You can use the app on iPhone, iPod Touch or iPad or any device that has iPhone OS 3.0 running or later.

iTunes Link Below