let me give you a hand with what I found

for pocket pc

http://www.1800pocketpc.com/2010/04/...e-theater.html

a web interface and someone with a N900 using it

http://www.greenhughes.com/content/r...-another-phone

for webos

http://www.knowyourcell.com/news/440...for_webos.html

and i know there is one for iphone and one for android

and the boxee web site

http://www.boxee.tv/

and yes MPC is media player classic