Originally Posted by jbs-horn
The latest changes to BIS changed the workaround. BIS now accesses gmail via IMAP, but the advanced settings aren't available. You can still work around it by giving BIS a bogus user I'd such as "firstname.lastname@example.org". It will time out and give you the old option to provide the settings by hand. I prefer to access gmail this way. Items deleted from the web interface delete from the BlackBerry more quickly.
That was the trick. I didn't think to try with dummy addy.
The new BIS GMail auto setup syncs with All mail rather than the inbox. I don't care for that at all, because I have filters setup to sort into labels and to skip the inbox which also prevents the emails from syncing to the BB.