The iPod is so popular that even manufacturers like Duracell jump onto the iPod accessory market now:
Duracell (yes, the battery makers) has launched their PowerFM iPod deck, with the aim of "consolidating the best features of all the iPod accessories on the market." Yes, well, I suppose if you're late to the market the best bet is to just steal everything that's there and make it better. A lesson learned by Microsoft, being used to help Apple's minions. Irony.
The Power FM has a wireless FM transmitter, a protective case and a battery life extender. More info at TG Daily. It will be available within some months for $79.