Back when the Vita was revealed, I remember dreaming about playing a game on my HDTV, then picking up my Vita and continuing to play the same game on the go. Of course, that's never really panned out on the PS3 -- though it has with the Asian-only Vita TV.
A bit of backstory: since I wrote at length about the Vita TV back when it was released in November, I hadn't used it much -- nor my normal Vita for that matter. But with my trip from Japan to America for the holidays looming, picking up a portable title for my vacation seemed like a good choice. As I was packing up my Vita, I decided on a whim to pack my Vita TV as well. After all, the Vita TV is actually about half the size of a normal Vita and can easily fit in a pocket.
This was the best decision I made all vacation.
The Vita TV is the perfect "home console" for travel. When everyone else was cooking, shopping, or otherwise occupied -- or when I just announced that I literally needed to go play video games (something I had always dreamed of getting to tell my mother) -- I'd whip out my Vita TV. After the sparse few seconds it took to connect the power cord and HDMI cables, I was playing happily. Then, whenever I was in for an extended car ride (or aeroplane flight), I simply turned off the Vita TV, popped out the game and memory card, then put them into my normal Vita.
The changeover process took mere moments and then I was back to playing.
I suppose I always thought (feared?) there would be some kind of hassle when it came to switching from the Vita TV to the portable Vita -- that it couldn't be as simple as it should be. Yet, I discovered that I was (happily) wrong.
Since coming back to Japan, I have been continuing my Vita/Vita TV crossover usage and reveling in the sheer convenience of it. And since I picked up Persona 4: Golden while in the US, I doubt this is going to end anytime soon.
The PlayStation Vita TV was released in Japan on November 14, 2013. There is currently no word on a Western release.