Voice enabled search
The keyboard actually works very nicely but would definitely be convenient and efficient to have voice enabled search in home and browser. Would also be great for leaving reviews in the store.
I'd say voice to text for the keyboard in general would be useful. Point tapping with the controllers can be a bit tedious.
Please upload everyone's voice to Facebook servers and make profiles of people so that you can make targetted ads based on that and also sell the data to advertisers. lol!