I'm using Dropbox because it supports Linux and has worked extremely well thus far.
I can't speak to ZumoDrive's performance or reliability (although I'm sure its fine), but it does look like they have more pricing options if you want a smaller or larger plan.
I can't speak to ZumoDrive's performance or reliability (although I'm sure its fine), but it does look like they have more pricing options if you want a smaller or larger plan.