I also picked one up today at Canadian Tire. It's 50% off through Boxing Day, so I got it for $10.
I'll see how useful it comes in. I want to say "This is silly - it's just a cheap, underpowered, one-use dremel", but it's also VASTLY lighter than my dremel and as maxxon pointed out, its being underpowered is actually a plus for anything delicate, so I think it'll have its uses.