Advanced Configuration Tool for WP7 beta
Advanced Configuration Tool for WP7 allows you to customize themes, sounds, tiles, icons and to tweak your phone.
It is currently compatible with HTC, Samsung and LG WP7.
New in version 1.2.1.0:
Support of theme templates
Custom theme templates (you can customize xaml templates from ThemeTemplates.zip and place them in \Windows)
Display Wi-Fi MAC address on Samsung devices
Fixed bugs & compatibility issues