Just found this app and thought I would share. I wanted an app like BerryBuzz that I had on my old Blackberry (that is the only thing I missed about my blackberry
This app works great on my Droid X. Don't give up right away when it doesn't work right off the bat. Took me some time to figure out what needed to be checked etc in different apps to get it working properly and without double or no notification. I had my gmail, sms, missed call, and google voice all flashing appropriate colors and sounds including the reminders!!! I love it! The dev is awesome and responds to emails. Give it a try, its worth the buck. There is also a free version.
https://market.android.com/details?id=com.rageconsulting.android.lightflow&feature=search_result
https://market.android.com/details?id=com.rageconsulting.android.lightflow&feature=search_result