Curiosa enables update notifications for Cydia apps

Curiosa is a new jailbreak tweak, that comes to us via prominent jailbreak developer Ryan Petrich, which enables Cydia updates to be integrated into the iOS 5 Notification Center, making it easy to keep your software up to date.
To install Curiosa, you need to add Ryan Petrich’s repository http://rpetri.ch/repo to Cydia under Manage > Sources, then just download Curiosa for free from the Cydia store.
source: CultOfMac