I've already got a GP2x Wiz and a Pandora 1ghz. I use the pandora mainly as mini laptop and portable music player (and occasionally as game console), and the wiz as my primary handheld game console, as the colors are as good as on the original systems it emulates.
If the GCW would have had an AMOLED screen I'd go for that immediately and ditch the Wiz, as emulators aren't updated on the wiz anymore. Any chance for a GCW deluxe with AMOLED?