Dean,

>   I was thinking that Squeak on an 18.432 MHz ARM 710 on the S5 would
>   give a very good idea of how it would perform on the 16.78 MHz
>   ARM 710T in the new Gameboy.

Running Squeak on a 33 MHz 486 should also give you a good feel for how
it would perform on these machines.

And you are right about the OSKit not being worth it for non-PC
computers.

-- Jecel