Yev from Backblaze -> We're working on it, in a fashion. With Backblaze B2 you'll be able to push from a Linux machine using CLIs/APIs and get those computers backed up as well! Slightly different, but it's the best way for us to help Linux users!
It is probably unfair to ask, but is there a way to get an early invite for B2 (I already signed up but can't contain my excitement; email: HN username at gmail)?. Also, have there been any comparisons of B2 done with Amazon Cloud Drive's unlimited everything plan for $59 a year (with break even when compared to B2 at around a TB)? They do provide an API, although I have yet to try it out.