UPDATE: This was released in USA mid Dec. 06
I now have the locationfree workign on my x51v. It was a little interesting to set up, as you have to create 2 different profiles, one for inside the house, and another for outside the house. The Sony people were eager to help me over the phone.
I also managed to get this to work via EVDO on the Verizon network. For some reason the 1X doesnt really get enough speed to watch it without being extremely choppy. I must say its pretty cool to be able to walk down the street and access your comcast from the s51v. Or better yet, i used it last night at the Ravens game to watch instant replays from my nosebleed seets lol. But i'll admit......the jumbotron is a little better lol.
Anyway, just wanted to report back. Its $19.80
http://www.pocketgear.com/software_detail.asp?id=23859