I like the idea of Vita TV. My life has certainly changed over the years and to me the experience of the big consoles(PS, XBox, WiiU ) have been mostly been there done that. There are still great games on the machine, but I've been more interested in the indie games like Limbo(which I have yet to play).
While I know the Vita TV will pretty much be mostly the same experience. I like the idea of the box being designed from the ground up to try and provide a non-gaming interface experience. I thought the Bubble menu of the Vita was a great universal interface. I feel that this is important element that I believe many over look. I have a Wii and PS3. I have netflix and movies on my HDD. The PS3 produces better video output. However I often fight more with the interface than the Wii. The Wii is a simple point and click, the same as the Vita gui. So to me it's a great device to blend game console, tv tool, house tool.
The part I actually don't like is the idea that the only conrtoller is the DualShock3(DS3). Which is the entire reason I don't use the PS3. It's this one element that I feel many game developers and production companies far over look. The classic controller is a terrible controller for any kind of basic, free flowing, interface device. I feel the Vita can rock the TV Box world if they design a minimal cost pointer based interface. I feel that this is what will hold Vita back as a mass consumer device.
On the gaming side I would love to have the opportunity to have a Webview gaming for the Vita to put C2 games on. I doubt that will happen, but that would be awesome. As for the Ouya. Well everything I said above stands. Except Sony has a lot more leverage weight that Boxer8.
Streaming games. Personally I see this technology coming down the road. I feel that Sony is producing Vita TV to start integrating streaming games. While I know a lot of people feel there PS4 is going to be "THE CONSOLE" to stream. I suspect it's all about VitaTV 2, to discontinue the PSConsole line. Just a hunch that in about 10 years when the Vita2 is ready Gakai will be ready to just obsolete the PS5 before it comes out.