I've been using this on my Gmail account for a couple months in beta. (It was also available for Google Apps Premier/Education/Gov). Surprisingly it hasn't bee

I've been using this on my Gmail account for a couple months in beta. (It was also available for Google Apps Premier/Education/Gov). Surprisingly it hasn't been a hassle at all-- anyone who uses their Gmail for "everything" should start using it. It takes 15 minutes to set up (you have to / should generate tokens for each of your mobile and desktop apps, e.g. Apple Mail, iCal, Adium, Meebo, Voice, Latitude) but after that, it's super easy as long as you always have your smartphone+authenticator with you. Spending 30 seconds extra/month/device to enter a 6-digit keycode isn't a huge price to pay for better security (at least for me-- I have one phone and one computer.)