Those cool guys at iD Software have released the source code to the hugely popular DOOM Classic game for iPhone & iPodTouch. It has been released under the GPL License and can be downloaded from HERE. You’ll probably also want to read the Build Instructions. 
For more information check out Development on Doom Classic By John Carmack, Technical Director, Id Software.
If you’re not an iPhone developer you can purchase the game from the AppStore
Features:
Play the legendary first person shooter, DOOM, with an iPhone or iPod Touch. Fight through 36 missions in four action-packed episodes: Knee-Deep in the Dead, Shores of Hell, Inferno, and Thy Flesh Consumed.
Experience DOOM multiplayer on your mobile device, including Deathmatch and Cooperative play for up to four players via wireless internet.
Choose from three different control types and customize the interface to suit your style.
Explore the depths of Mars while utilizing the topdown map to help you explore and save your game on the fly.
Listen to the original soundtrack or disable it and use your own iPod music.
Review Scraper is the ideal app to download App Store reviews on a global scale. The App can be downloaded HERE free from Google Code and needs to be compiled.
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Developers can easily track what people are saying about their apps and see how it ranks in all the App Store countries.
• Search for apps using a familiar interface.
• Translate app reviews into your native language (language support is limited to what the Google Translation API supports).
• Downloaded app reviews are saved and can be easily deleted.
svn checkout http://reviewscraper.googlecode.com/svn/trunk/
I’m sure you remember the classic 1st person shooter Wolfenstein 3d. The creators iD Software have revived the game once again and ported it to run on the iPhone. Non developers can buy the game from the App store for $4.99 Interestingly though, if you are an iPhone Developer, the full source files for the game are released free under an open source license. A full paid ($99) iPhone developer license is required in order to compile the code on your own device.
The source code can be downloaded here from Id’s ftp server
If you are interested in running Wolf3d on the iPhone simulator you need to make some minor code modification. Instruction can be found at ghostradio.net
