I have the Droid Incredible 2 with my corporate email on it, gmail and juno email account. When I try to open to view the emails, the Droid takes forever (up to 1 minute) to load. Then, it will frequently say "Activity Mail (in application Mail) is not responding" and I can choose to FORCE CLOSE or WAIT. I choose "force close", try again, and after 15+ seconds then email loads. Then, when I try to open an email, it takes upwards of 15 - 30 seconds for the specific email message to load (frequently I get the same error as above). My 3 year old blackberry was 1000 times faster than this. I have already done the following:
1. Only download email for last 3 days;
2. Only check email every 15 minutes during peak time, 30 minutes during off peak; and
3. taken steps to preserve battery,i.e. no GPS, Bluetooth running, Brightness turned all the way down.