I hope it will eventually be a one stop shop for your notification needs!
Its pretty limited right now, but it pushes via Prowl:
twitter trends (with great descriptions from from Brizzly)
shipping notifications (UPS and USPS)
- generic rss feed notification
commercial airline flight info notification
sport score notification
Just put in your email and a username and you'll get a confirmation number.
If anyone has any suggestions for improvements or additional features, let me know here or on the AutoNote forums.
Check it out: AutoNote