While waiting for the official AppStore RSS Ffed to be up and running, the website Pinch Media offer a specific RSS feed with all recently added applications, with a choice between fee-based and freeware, as well as update and top 100 ranking.
Another RSS feed is also available, it lists all applications with screen captures.
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Apple
CD Drives
G5
Hard Drive
Internet
iPad
iPhone
iPod
Laptop
MacBidouille
Mac Intel
Mac OS X
Network
Overclock
PC
Peripheral
Software
Sound
SSD
Video
