You can find them in the US for 199USD.
Mine cost 235£ in the UK a few months ago.
Btw, the SL5600 should be able to run UAE a bit better as it has a 400Mhz Xscale processor as opposed to the 206Mhz StrongARM in the 5500.
It has a lot of fancy apps available for the OpenZaurus version of the ROM...
And besides, Opie looks a lot nicer than Qtopia....
