When I found that Gmail for mobile 2.0 was released I was eager to install it. However, when I tried to update the version I had - 1.5, I had a bit of a challenge. I got an message asking me if I wanted to update version 1.50 with version 1.50, not 2.0.
I resorted to deleting Gmail for mobile 1.5 from my Nokia 6080b and install 2.0 but was told "File too large to be saved." I was astonished that a 500K application could be installed on a phone with 2.1MB of free space.
After several attempts I reverted to Gmail for mobile 1.5 which took a lot if 'Googling' just to find the application. I was lucky and found a useful link - http://gmail.com/app/v1.5.0/L1/gmail-g.jar. I also tried http://gmail.com/app/gmail.jad?make=BRAND&model=MODEL&ver=v188.8.131.523.