You are able to use touch controls with PS Vita TV after all, although it doesn’t sound like the most intuitive or natural of systems. Instead of flicking or tapping as you would on the Vita screen, you press L3 or R3 to activate a pointer, which can then be moved around.
It will be interesting to see how well this works – I can imagine that it would work brilliantly for some games, but rather poorly in others, and some games will still surely go unsupported due to stick movement instead of touch simply not being a viable option.
This comes from a FAQ on the Japanese PlayStation website, which also confirms a few other things including the transferring of save data between TV and Vita and that you’ll need a network account for video services, naturally.
Oh, and it has 1GB of memory built-in to get you going.