My first impressions (I received it a week ago or so):
The touchscreen seems nice. I drew a few lines with my finger nail before realizing that the bulge underneath the unit holds a stylus.
So I pulled it out and was immediately disappointed. Why is this oval? (I suppose to fit into a limited space slot).
However it has to be the worst stylus I've used and I've used a few PDAs and touchscreen gaming devices over the years.
Boot speed is okay.
Screen is nice - haven't tried it in daylight yet. Contrast looks excellent.
I haven't noticed the screen tearing (yet).
The controller is passable, much better than the original GP2X but with the DaveC mod, the GP2X feels nicer to me.
The buttons are not my cup of tea - the shape and the little chrome bits are both ugly and not practical.
Hey, check it out, it's got a clock in it - hooray! Finally date-stamps for files! The first Gamepark handheld with a clock that keeps it's time.
I really wish the GP2X had this.
Non-standard connector for the USB cable isn't great. Yet another cable I need to have lying around.
I now have 2x GP32 (BLU and FLU), standard mini-USB (PSP and GP2X), Canon digital camera cable and now the Wiz. <_<
As least it charges from this so no batteries to worry about (for a while).
The bad thing is that when it runs out, it's out, you can't easily carry a spare (or can you?)
So far, battery life seems good.
Probably the biggest weakness is it's clock speed.
Casual users will think that "800Mhz" will be really fast (wow, as fast as the Pandora?)
No way, the benchmarks are different. Looks like it's almost a 2:1 ratio (compare to the GP2X).
Overall verdict - typical Gamepark release. Sounds like it's amazingly good on paper but has a few flaws though none of them are critical.
I'm still mainly using my GP2X at the moment.