I’ve already been a happy user of Gmail for quite some time now, but it just proved its usefulness tenfold. Having finished up directions to my apartment in an e-mail, I just wanted to doublecheck something on the Google Maps page I had open (just call me a Google Whore). Instead of select the last tab, I clicked on close current tab. ARRGGHHH!!! But wait, Gmail now has an auto-save feature and I only lost one sentence!
Score one for Gmail indeed.