I had the chance of poking at a Genesys system a year or so ago at the local hobby shop - I reckon they still have it - and that's nothing more than a flat style brushless motor/induction generator.

I too long for a small magneto igniton for my small glow engines, without having to worry about CDI batteries and all that. Nothing beats flipping the prop and away it goes - one reason I like model diesels.