Which bluetooth GPS?

I'd like to add GPS to mu wifi ipad mini. Which (budget friendly) gps bloetooth devices do you all use?

I have used the Dual XGPS-150. It works via a bluetooth connection to your iPad. This lets you put the 150 on your dash or someplace with an excellent view of the sky. Your wifi iPad can then use the location info with Navigation software like Navigon or MotionX Drive, and others.

Thanks for the suggestion. It looks great, but is out of my budget.

I wonder, will any bluetooth gps will work with the iPad, or does it need drivers or specific software?

Not all external GPS BT devices are approved by Apple. No special software or drivers needed. here is one of them GNS 5870 MFI GPS Bluetooth Receiver for iPhone, iPad and iPod touch: Amazon.co.uk: Computers & Accessoriesnd here is the other one http://bad-elf.com/products/

Hope this helps.

Will NON-approved GPS work? I wonder if an old Android phone w/GPS and Bluetooth would work?