As someone who just bought an Ipad3(the newipad) I'm curious to try this out and to see how much I'll be using it.
Smartglass is suppose to come out this fall.
So we should be getting it very soon.
The idea of using tablets with the 360 is cool but the applications they showed were lacking. I don't need a new remote, the other consoles have similar/equivalent Netflix apps, and I don't watch any shows that would actually be made better by having to look away from the TV to get more info.
I've used it briefly.
So far I've used it to navigate the home screen.
And I also used it as a remote control for watching a movie on Netflix.
I like it.
I haven't used my Xbox since the app came out for Android and I'm not sure I care to. Nothing on it seems really interesting. Also, it runs through the internet, not just straight to the console, which means there's a lag AND both the console and phone must be connected.
I gave it a go. Neat tech demo. But it's harder to use than the controller or my Harmony One for basic nav. And it requires Gold Live to use the Browser. So I don't see any use for me.