Motorola Q

I'm thinking of getting a Q. I use my phone a lot to access AOL e-mail. I tried a Q at the store and kept getting AOL messages saying the browser wasn't supported. There was an option to download new software, but I didn't want to do that on the store's phone. Does anyone use the Q for AOL e-mail and does it work smoothly? Also, does the Q allow you to save your AOL screen name and password so you don't have to enter them every time (my LG 9800 has a software bug and this feature doesn't work)? Finally, I'm trying to decide if I need the unlimited data plan. Is there any ballpark way to estimate how much use you get from one of the more restricted data plans--how many e-mails can you read, for example? Thanks for your help!