I have yet to play Amplitude, even though it's sitting in my shelf.. still unopened, in plastic. I got it for $2 off the "Great Overstock.com Deal" a few months back..
I wouldn't imagine playing Frequency on the PSP. I need 3 trigger buttons at least, and some good speakers. I could go for another sequel on PS2 though...
Currently I have too many other games to play, including RE4, which rocks. Nothing goes above that right now. Except if somehow the new Zelda gets released tomorrow. Then maybe that'll knock it out of the top spot.
I wouldn't imagine playing Frequency on the PSP. I need 3 trigger buttons at least, and some good speakers. I could go for another sequel on PS2 though...
I actually emailed Harmonix about a PS2 sequel to Freq/Amp a while back, and got a response along the lines of "sales weren't good enough on the first two games to get a third made".
I highly doubt Harmonix will make another Freq/Amp game. I guess for now they are content milking the Karaoke popularity for now. I gotta admit I like Karaoke Revolution but I want Freq 2. I was shocked to hear they are the ones that made Antigrav, it's fun with people around but the eyetoy does have it problems. If there was a Frequency game on PSP I'd get a PSP for that reason alone.