Dual recently released a Bluetooth GPS receiver for iOS devices called the XGPS150. I have to admit that it looks kind of neat. I sent their media contacts a request to test drive that puppy, so we will see if I get a response.
If you recall from a post a while back though, I was placed on the list for their original iPod Touch GPS Receiver. I know there are limited test units and not everyone can try it, but my follow-up email questions never even received a courtesy or even generic response :( . I hope that this is not the case here.
Regardless, it will be interesting to see what peoples' experiences are with this unit.
(On a side note, I am currently testing a BT GPS Receiver for iOS from a competing company. My plan is to write up a review on it this weekend.)