PSP and different models.

[Hartley Hare]

E1000 is the best I have seen.

[sj33]

In some ways, I wish I picked up a Go for the form factor, though it does have a smaller screen. A small thing to note too, the Go is incompatible with older versions of the PS1 emulation in Popsloader. Not a problem 99% of the time because the newest revision is perfectly fine, but some 'unofficially-compiled' PS1 games that use CD Audio require an older revision of the PS1 emulator that does not work on the Go (I believe).

I assume the same might be true of the E-1000, though that is an assumption.