One of things I'd love to upgrade in my Toyota 4Runner when I finish paying it off at the end of the year, is the radio. It's currently got a JBL Radio/Navigation system in it, but I've not been able to find an interface that for the radio which will allow me to connect an mp3 player to it. I could buy an FM modulator, but I really don't want to lose sound quality if possible.
However, I'd really love to get a stereo with native hard drive for mp3s, Sirius support (so I can get rid of my Sportster—which I like, but would prefer not to have to have it on the dash) and I'd like to have handsfree Bluetooth support.
I'm not exactly sure what benefit built-in WiFi gives you. The only really usefulness I can think of would be for transferring files between your house and car while in the driveway.
The radio looks pretty sweet (screenshot below,) but I do wonder about start/boot times when you turn the car on. That's definitely one of the biggest disadvantages I can see with a PC-based radio system.
Also, I think my preference would have been to see them use a streamlined Linux-based OS that was designed specifically for the task at hand. There are certainly advantages to using Windows as the OS since you have tons of software at your disposal, but I can't see myself wanting to load a bunch of custom software on a car stereo system.
Anyway, this looks like a pretty cool product to keep an eye on.