Birthday Beta app is a Free cydia app. It allows you to remember birthdays and keeps a track of upcoming dates by updating its badge automatically. The number of badge displays birthday in next seven days. Though I wasn’t able to utilize all the features of the app, any one who knows about it please feel free to write about it in the comments column. Till then I will keep cracking my head on it and get back with more soon!
Search ‘Birthday Beta’ in Cydia
Cydia is an Installer alternative, that Installs on Jailbroken iPhone 2.x… Info here