1. over what protocol, some yes, some no.

2. It is very unlikely the cam will ever work with msn.

3. the touch screen keyboard works just fine, type the command and press enter....

4. you can stream quite a file formates, im not sure if this is one of them, it probably can if it is at the right resolution and formated correctly. (use Canola for your media player, it can do UPNP streaming)

5. id say about 5-6 max, with out it starting to lag...