First, this is by Playcast so its streaming...second, its a tech demo of sorts or beta...
...but it worked pretty well for me and I have crappy DSL internet.
Note: for now it requires an Ethernet connection...but they may allow play over wifi later.
I was impressed. Lego games are a hit in my household and I hadn't played this one. It plays just about as good as playing on my Xbox 360. There were a few moments where I could tell it was streaming but not very often. I assume that someone with a real internet connection not have to worry about it.
Hey...its access to the full games for free while its on there. Playcast said a few weeks, Check it out.
Splinter Cell: Conviction.
Lego Batman 2