Echo Outdoor Power Equipment (also known as Kioritz of Japan) makes a power auger, primarily as an earth auger, but apparantly they also sell an ice bit for their power head. I think most of us would know them as weed trimmer/chainsaw makers.
Although, at 700 bucks, I don't think the average guy will ever seriously consider these things for recreational use, but I do have an echo weed trimmer, and that little Kioritz engine is very ballsy, great torque out of that little thing, I would imagine that their auger would be pretty slick as well.
I don't suppose anyone has ever used this thing before? Not likely to find anyone, unless they are a landscape contractor who happens to use their tool ice fishing as well.