The iPhone/iPod Touch App Store is officially open for business and the leading lights in mobile games are falling over themselves to put their wares in the shop window.

In no particular order:

Gameloft has released Diamond Twister, Platinum Solitaire, Platinum Sudoku, Bubble Bash (all $7.99), Brain Challenge and Chess & Backgammon Classics (both $9.99).

Electronic Arts has released three games via the App Store in the form of Scrabble (US and Canada only), EA Sudoku and Tetris. An iPhone version of upcoming console game Spore will be made available in September.

Glu Mobile has released Space Monkey for $9.99.

I-play has served up a puzzle game in the form of Numba, which has been developed by Cobra Mobile and is priced at $9.99.

PopCap has ported Bejeweled 2 to iPhone and is offering it for $9.99.

Ad-funded mobile games specialist Greystripe says its AdWrap technology is now working for the iPhone, so publishers can incorporate advertising into their games to either subsidise them or give them away for free.

For details of other apps available at launch, visit CasualGaming.biz sister-site Mobile Entertainment.

To recap, Apple's App Store went live today at 5pm GMT in support of tomorrow's launch of the iPhone 3G.

Apple says that of the 500 applications available at launch, over a third are be games-related – and 90 per cent of the service’s offering will be priced at $9.99 or less.

Content providers get to keep 70 per cent of the revenue