the H2D might by HTC its a windows mobile platform. Will be upgradeable to Win7 mobile when its available.
the android is a derivative of unix. It to could be jerry rigged im sure to do it.
couldnt tell you about the iphone
not an apple fan.
And what do you mean streaming interactive video from their computer? Sounds similar to doing a remote access of some kind.
Some of the remote access apps i have seen let you access and run everything/anything on your comp. At lest for the droid.
Note: The HTC H2D isnt even out yet in the US.