Downloaded it at work yesterday when i saw the ad on Sky news ( funnily enough ) which is on the canteen TV.
Having had a play it seems really clear , quick and easy to use on 3G and is lightning fast on wifi at home.
Ive not tried the videos yet , but thinking about it i may well never do.
Shame the sky+ app is as well designed as this one ( login status not showing , no HD channel option etc )
Recommended.