Metro & WinRT & Linux
Imagine that you are in a store. You have two new netbook/tablet convertibles in front of you. One of them is $250.00 and runs Ubuntu Linux. The other is $350.00. They are both dual core ARM systems with 2GB of DDR3 RAM, and 64GB SSDs. On top of that, they can both run Metro applications, and have cloud synchronization features that are free of charge for starter storage amounts and pay to expand. Besides price, the Ubuntu machine has two other things that it can offer. It has a different interface, and it has an extra application store with thousands of free and libre applications. This is a very real possibility in the future.