This pretty much. I thought after the failure of the PSP Sony would have learnt from their mistake with the Vita but nope they made exactly the same mistake.
Failure? The PSP has sold 70 million units. That's a lot. It's the only non-Nintendo handheld that got a proper sucessor as well as opposed to slowly dying out. It may be far behind DS numbers, but taken in the context of previous non-Nintendo handhelds and video game systems in general, it's doing pretty okay.