I'm with this. Obviously, I've invested some $$ and time into my Orb setup, but all-told, I got it all running for about $120. Does slingbox do anything other than TV? I enjoy having all my media available all the time.I assume you'll need a Slingbox. It ranges from $179.99 to $299.99.
I'm also assuming the app will not be free. Maybe $9.99 or more?
I wonder if the performance will be any better than Orb/Orblive? With Orb, performance may be affected by the computer you are using. At least for Slingbox there's consistent hardware.
I don't think I'll plunk down $200+ to get this going.