I didn't say they failed, but trying to find someone who owns one - or even knows about one of the devices - outside open-source enthusiast circles is difficult to say the least.

I'm sure most PC gamers don't know GoG.com either and just use Steam. ;)

But I've seen it mentioned quite a bit even outside anti-DRM groups. I do hope you're right about the Linux-based portable consoles not being as obscure as I think they are though, it'd be great seeing the GCW Zero getting wider recognition outside the GP2X/Dingoo/Pandora communities.