I just came over from ATT with a Blackjack 2. I'm loving my G1 but my biggest problem is the lousy e-mail alert system. There are plenty of apps to improve missed call alerts, SMS/MMS alerts, etc, but nothing that does jack for e-mails. I get dispatched jobs from the company I work for via e-mail and I end up missing most of them since the alerts are so tame and I can't set any special rules.
When I was using my Blackjack I was using a program called Watchflag
Watchflag - provides flexible alerts for email and text messages on your Windows Mobile device.
Is there anything even remotely like this for Android? Even something that would help a little like dgAlert, MissedCall, or ChompSMS does for the other alerts?