My first thought is that if this has speaking capabilities as many in car GPS units do, it should allow you to play music in the background and automatically decrease the volume when it needs to say something. If it did I'd be inclined to dash-mount one and use one of the existing FM transmitters or an FM Modulator to run the PSP into my car stereo.

Without voice capabilities it seems like this would be more useful as a hand held GPS unit but the size and position of the adapter prohibit one from pocketing the PSP with it attached and having to detach it every time you wanted a free hand could be quite annoying. Perhaps they should have placed a hinge on the part that sticks up (the antenna I assume) that allows you to fold it back over the UMD door on the rear of the PSP making it slightly thicker but still pocketable.

I'm also curious as to whether the software allows you to store your own points on a memory stick pro duo and map them on a PC later.

Is there any word of when/if this will be coming state side?

Looks good to me, just waiting here for the NA version to hit the stores..... still waiting.....

Navigation systems are way more popular in Japan than, well, anywhere else. It's natural for something like that to be offered there, because it will sell. If it ever makes it state side I'll pick one up the first day they're available, for sure, but I doubt most PSP owners are thinking the same thing.

Most people will probably have a hard time getting over the notion that it's just a cheap, gimmicky, add-on that works poorly. I hope that's not the case, I could really use a cheap NavSat unit to help me get around the city I just moved to, but convincing the masses that it's a quality product at that price might be tough to accomplish.