When we were trying to figure out if Dropbox would be a good sync tool for Leanpub, Peter went in to a local coffee shop and asked a bunch of people if they'd e

When we were trying to figure out if Dropbox would be a good sync tool for Leanpub, Peter went in to a local coffee shop and asked a bunch of people if they'd ever heard of Dropbox. All of the baristas and everyone else in their 20s had, and had accounts. About half of the people 30 or older had heard of it, and most of them had accounts. We were pretty impressed with the numbers, and we ended up going with Dropbox, and we've never regretted it.