You know that unlocked iPhone T-Mobile has to sell in Germany? Right, the one that costs €999 instead of €399 with contract. Well, if you're Debitel, then you make a bid for the iPhone non-exclusive by offering a €600 sign-up bonus (to bring the cost back to €399) on a network of your very own. Of course, visual voice mail is a no-go and there's no mention of unlimited WiFi, but at least you've got the iPhone (and a fat Debitel contract, presumably).
Update: Debitel's rates will start at €40 per month compared to T-Mobile's €49.