For Nokia Mobile download nexGTv nano here http://store.ovi.com/nexGtv nano or open ovi store on your mobile then search for nexGTv nano then install and enjoy. I have tested it on Nokia 5800.
For Other Platform Check below
For Android download it form Android Market https://market.android.com/nextGtv nano
For Apple Phone check here http://itunes.apple.com/nexGTv nano