have you ever visited the special needs fringe?
lots of software and hardware to try out, exhibitors include...
Tobii (P10, CEye),
Techcess (Tellus plus Eyetech TM3), Liberator (Ecopoint),
Dynavox (Eyemax),
QED (Erica),
Smartbox (Alea Intelligaze, LC Eyegaze Edge, CEye, P10)
and lots more, its in the Olympia Hilton in London from the 13th to the 15th of January