The WMPoweruser app has just been updated to version 2.6.
The update, which can be found in the Store now is designed to work seamlessly with WP8 devices, supporting all available resolutions, and fixing a few bugs. The update also brings with it a much improved push notification back end, and support for all the tile sizes in WP8.
WP7 users will also get a speed boost and a few other back end changes.
The update can be found here.