Yesterday I installed LinuxMCE RC1 on my home PC. Unlike previous version Beta 2 it was installed without any problems. IP was not lost during installation. The process of configuration became more pictorial. Each step is illustrated by video. So, you can get useful information without reading manual direct from your TV.
LinuxMCE is really run as separated KDE desktop. To switch back to KDE from the Orbiter there is a specified button. Stop, start and manage LinuxMCE properties can be via its control panel.
So far, LinuxMCE works fine except one strange thing. If LinuxMCE run my USB hub LEDs are blinking. It seems that USB port power is OFF and ON continuously.