MakCorps - Hotel Price Comparison API
Cydia Impactor - Side load .ipa files on Windows, Mac OS X, and Linux to your iOS device or .
Gopher - Better hotel deals automatically, every time + cash back
Altstore - A home for apps that push the boundaries on iOS
TripRebel - Book your hotel now & get a refund when the price drops
Cydia - An alternative app store for jailbroken devices.