SplashData announce the release of SplashID 4, the biggest SplashID update ever. SplashID 4 works with Palm OS 4 and 5 (including all Treo smartphones) as well as Windows 98, ME, NT4, 2000, XP, and now Vista. SplashID 4 is not yet available for Mac OS. SplashID 4 is completely updated for both the Palm and PC, adding all of the features users have requested most.