some phones we tested with:

Nokia 6100, 6210, 6230, 6310, 6310i , 6610, 7110,
 8210, 8810, 8850, 8890, 8910(i) ...
Ericsson R520m, T39m, T68i, ...
Siemens S35, SL45, ME45, S55, ...
Motorola Timeport 7389, 7089, T250e ...
Samsung A 300, ...

for Smartphones the Treo 600 and 650 GSM
as well as the Treo 180 and 270 GSM
are supported
 with maxTEXT TE ( = Treo Edition)

its fully functional shareware -
 please try before you buy your key