Thumbscan 1.0.6 (for Palm OS)
Rating: 
Downloads: 31,003
(189 this week)
Compatible with: Treo 600, Treo 650
Licence: Freeware
Last updated: 7 Oct, 2004
Author: Head Rush
ZIP file
PRC file
Have some SERIOUS showing-off fun with friends. This fun little freeware application "scans" your thumbprint for authorization. (It doesn't really scan it, but you can make it seem that it does, and it is great for playing with friends.) It will always fail unless you press up/down on D-pad. Thanks to MTDN member darius for the find.
ttime3000: works good on 650 
sdl: To make it not FAIL, press the UP or DOWN scroll buttons before putting your thumb on it to test. Fun little app. Wish it didn't make so much noise. 
ranielvalerio94: can someone help me..... i dont know how to not make it say FAIL 
ecsacker6306: i guess i didn't download it right, cuz i always have to access the app to make it work... shouldn't it happen every time hit the "end call" button?