I was checking out the Windows Media Center PC 2005 and saw that when the computer is 'thinking' it has an icon to show that. That would be cool if Media Portal did that too (especially with the MCE skin.)
I think this would be a really good feature to add. I can be difficult to tell if the computer is "thinking" or it didn't receive the remote command. This feature is high on my list.
The thinking/blinking icon seems a good idea to me, indeed no priority tho.
besides, maybe its possible to develop 2 icons
1- pc activity
2- remote command received
although the latter is allready represented by means of audible feedback. (soundzz)