AppStore.app

Introduction
AppStore.app is the application Apple has added to iPhone & iPhone3G 2.x firmwares for distributing applications made using Apple's iPhone SDK. The following is just some initial information gathered by mxweas

Initialization of AppStore
GET http://phobos.apple.com:80/bag.xml?ix=2 User-Agent: iTunes-iphone/2.0 X-Apple-Connection-Type: WiFi X-Apple-Store-Front: 143441-1,2 ->302 Moved Temporarily - http://ax.phobos.apple.com.edgesuite.net/WebObjects/MZStore.woa/wa/initiateSession?ix=2

GET http://ax.phobos.apple.com.edgesuite.net:80/WebObjects/MZStore.woa/wa/initiateSession?ix=2 User-Agent: iTunes-iphone/2.0 X-Apple-Connection-Type: WiFi X-Apple-Store-Front: 143441-1,2 ->?

Your Name

 * 1) Take the application icon and drag it from iTunes to your desktop
 * 2) It will be an ipa file. Unzip it.
 * 3) Open Payload/ .app/SC_Info/ .sinf in a hex editor

Do the above and look at offset 0x0c0. You will see your name, or the name of the person who crappily cracked your application :P