If Vision PMP is testing the market then the result of that test must surely be that nobody wants another SEGA handheld?
People that have one in their possession are extremely happy with it -
http://www.youtube.com/watch?v=vrZCjyhirwA
http://www.youtube.com/watch?v=j-2SvPEO9d8
http://www.youtube.com/watch?v=0WyXEVRiiCg
http://www.youtube.com/watch?v=34a6JSsmS00
Infact SEGA have themselves stated that they may release an updated model with touchscreen and digital tv tuner.