The developer Zotyo release his application statusnotifier into Cydia today. Statusnotifier is a iPhone status bar notifier that will show you iPhone mail, SMS, Call and voicemail notifications in your statusbar. The application is almost the same as taskbarnotifier except for the fact that statusnotifier does run on firmware 2.x.

» Statusnotifier (email, sms, call notifier in the tasbar)- Cydia