I have been using Gmal for about 2 months now and I am thinking of stopping using it.
The first thing is security - if every email you ever have is archived, what are the security implications? If someone ever somehow got you password think of all the sensitive emails you may have stored - password reminders etc etc.
Also, has anyone been finding problems with attachments? Sometimes I download (thunderbird) about 10+ copies of the same one, but the attachment size is usually slightly different for each one (bits missing etc). Anyone else found this?