Various Method of Browsing Gmail

Safe mode - http://mail.google.com/mail/?labs=0

Secure mode - https://mail.google.com/

Older version - http://mail.google.com/mail/?ui=1

Basic mode - http://mail.google.com/mail/?ui=html

Mobile mode - http://mail.google.com/mail/?ui=mobile or http://m.gmail.com

iPhone mode - http://mail.google.com/mail/x/gdlakb-/gp/

iGoogle gadget - http://www.google.com/ig/gmailmax

“No browser checking” mode - http://mail.google.com/mail?nocheckbrowser