I don't really see any of those imitations in stores unless they're in some 2$ or Reject shop.
I saw some a while which followed some different designs such as the GBC GBASP and PS1 (might've been some more but I forget) but they all did the same thing, just had different designs.

Heartless141 Wrote:nah it just a cheap design everyone can think of, that's what most people think when they saw the GO

I'll be honest here but I didn't think that when I first saw the GO, I just thought Sony are really trying to market the PSP because wee just got two other new designs not very long ago. All I thought design wise is how weird it'll be to hold.