I love Dropbox and use it on all my devices. However, I really wish they would implement permissions on shared folders. It's one of the two most requested features that users want, but they still won't implement it [https://www.dropbox.com/votebox].

As soon as someone comes along that has integrates as seamlessly on my Windows PC, Linux PC and Android phone AND offers permissions on shared folders I will jump ship.

I don't know why, but it actually makes me cross that they aren't listening to their user-base.