That would be the most awesome addition to the phone! Change the TV with the phone. Better yet, they should start making tv's with bluetooth ports that control the signal rather than infrared.
"Unify4Life� transforms the BlackBerry� smartphone into the ultimate universal remote control by providing a versatile solution that fully manages your home entertainment environment including home theatres, radio receivers and televisions. Along with streaming audio from the BlackBerry� smartphone to audio devices, Unify4Life� features an integrated television program listings where you can browse, set show reminders, search, and create a favorites list. "
i think eventually tvs will use WIFI for just about everything. ATT already has U-Verse which provides TV over IP.
It would make sense to have a tv connected to a secure network, that way you could stream your favorite shows to any device you want, and set controls, recordngs, etc with it.
There were similar apps that did the same thing for the n95 but not all TV's worked. You have to type in the tv model number and something else. I forgot. It's been a while since I were on their forums.