Confusingly, the PSP version of Echochrome hasn't been announced for the Western world. We're hopeful that it will be, since it features a huge amount of extra levels. Of course, the trade off is that the PSP's graphics will be much lower quality than those seen in these videos (plus it'll be about twice as expensive!) Still, that's a trade off we'd probably be willing to make.
It would seem from these videos that the avatar can be sped up at will, which will surely cut down on waiting times for the game. The camera also seems to move freely, adding an element of precision to an already brain-melting concept. Nevertheless, we can't wait to get our hands on it. The second video can be seen after the jump - see you there!