I Love Dropbox.  I got in as an early beta tester and have been a paying customer since the day the option was offered.<p>Dropbox helped me convince my old boss that I could work from home.<p>I use Dropbox to back up my iTunes music library...for some reason I used to lose a lot of my music every time I got a new computer.<p>All my work and personal files can be accessed and emailed right from my iPhone.<p>I sync 4 computers: work laptop, home laptop, a dell zino for my tv and my iPhone.  I never have to worry about a thing... Dropbox just works.