I have Cing8700 which has 2 mailbox icons (very happy)
BES and Gmail

I was able to do this setup on a VZW 7250 also
but....
on a VZW 7750 i cant get the second mailbox icon to show up

Does the 7750 support multi mailbox (icons)

What other carriers and BB's support this?

Thanks

for every email address you have going to your bb a mailbox should pop up. I have 6 accounts going to my bb and six mailboxes popped up. I hid them though because their were too many icons.

what BB do you have and what carrier

you need to have 4.1 handheld code on the BB to get this option - AND have a BIS 2.1 account

You'll need to either upgrade to BIS 2.1 or upgrade the handheld code (if it's released for the 7750)