This is a great idea to be exploring even though, as a developer, I think this just some fancy tech that has almost no use. Like already noted in a another comment, if you are on the go the phone can't replace a laptop.

However, it becomes more exciting to experiment different things with a versatile phone running Maru or something similar.

What would really like to see are tablets running non-Android linux, and iPads with OSX instead of iOS.