If you are looking for a tweak to fool your iPad apps from blocking your jailbroken devices, then xCon is definitely for you. Some iPad apps like Time Warner Cable and Sky Go search for an "iOS app called Cydia" and will deny access to the app since it knows that your device is jailbroken.
xCon prevents jailbreak detection in iOS app store apps. Not many native iOS apps block your device for being jailbroken, but some have been targeting and blocking jailbroken devices from access. Bloomberg Anywhere, Cablevision, Cisco M-Learning, DirecTV iPad and Time Warner Cable are blocking your jailbroken iPad and iPhone from access.
The developer of xCon has requested users to contact him if they want more apps added to the supported list. This tweak is made available for free from the ModMyi repo in Cydia...Enjoy!