Yeah, what's the problem this solves?
Here's one it could (but doesn't quite) solve.
At my office everyone carries around their laptop and is constantly trying to get it to work with the telecomm and video software. Some people have a work phone, a work laptop and a personal phone too. I even know some people who add a tablet to that mix. Sometimes I see them bouncing around between all those devices.
For most employees (not necessarily coders) it probably makes sense to just have one device: a phone that you can edit excel and powerpoint on. A universal dock should exist in every meeting room and on every desk.
The major impediments to this are currently the power of the device, the ability to use the os for actually making things, and the existence of a decent dock.
With this dock and the power of the latest generation of phones, we're just stuck on the fact that no one has been able to make an os that actually works well on both mobile devices and as a keyboard/mouse driven system for creating things.
Yeah, I'm looking straight at you, Windows 8.