The problem with this thread is that everybody has different needs so will need different solutions, at least with current tech. For me my desktop doubles as a MythTV frontend/backend and it currently has 3TB storage, now I'm not going to be able to fit that into a mobile device any time soon, and even if I could it still needs a good aerial connection for recording so realistically it has to remain stationary. However, many other people have ditched their desktops already in favour of a laptop which in many cases just lives on a desk and it's mobility is never actually taken advantage of.