I haven't done anything but install it so far, but:
http://www.styletap.com/index.php?page=downloads.html
Release Notes as of Version 0.9.136
VERSION 0.9.136 (current release as of 2006-06-16)
fixes, enhancements and optimizations for
AeroPlayer
Astromist
BalanceLog
BluefishRx
CASL
Crime-IQ
Directory Assistant
DocumentsToGo
Electrical Inspector
GigTracker
HandyShopper
Hoops
Machinist
Mobile Bourse
Palmary Clock
PDA Toolbox
Pendragon Forms
Piaf
PlanesWalker
Pro Swimmer
!pzip
Rhythm Pro
ScaleTuneE
Schulplaner 2
SlidesToGo
SolFree
TriLoan
Uniplaner
WM2006
WordToGo
World Hockey Championship
WorldMate
WWCalc
basic dial support using Handspring phone API; built-in dialer app
verified use of WM5.0 camera API through Native Library support
added stub app to launch Internet Explorer as default browser
IR support improvements
beaming bundled databases and overlays (send and receive)
OEM kit allows third-party apps to be bundled with StyleTap
added command-line -stop switch to StyleTap.exe