I just tryed LinuxMCE1.1B2 on Asus Pundit P1-P5945G and I had big problems with it.
Currently I don't know, if I've done something wrong, but I had problems with resolutions (LMCE always started with VGA and I had to use some tricky things to change the resolution).
UI2 didn't work. I had only possibility to run it with UI1, but LMCE worked very unstable anyway.
Now I want to install stable version 1.0, we will see.
btw: with Kubuntu Pundit works well (but not all hardware is fully supported).