That's awesome! A great exapmle of repackaging and repricing. I love finding stuff like that. I bet it would work very well, too. Not much capacity, though. Would be ideal for a small breeder, I bet. If temps are controlled well.
I pointed my friend mike at Thinkgeek when we were building his computer. He got a cigarette lighter for his computer. It slides in just like a DC burner. Got a cupholder, too.
I can appreciate that, despite hating smoke. It's just a perfect useless but ridiculous thing.
I'm probably going to fabricate a big incubator in the future. I'll use an old, broken deep freezer or refrigerator. Good seal, insulated, easy access. Larger volumes are more stable. If there is a power failure in a heater, a big space would be safer. I've never had more than 4 clutches incubating at once, but I plan on getting some melleri eggs eventually. And that would require space.
Plus, with a tall refrigerator, you could set the thermostat at the top or bottom, giving a temp gradient. Great form mixed species eggs - phelsuma on top, eggs needing cool temps on the bottom.
When I do it, I plan on going all out (but cheap). It should be interesting.