I have purchase a iPad (non 3g model) and have also recently started using an application called Foreflight for my personal flight planning while getting my private pilots license. I would love to be able to get a fix on my location - is there any way I can use a bluetooth GPS receiver with this application?
As far as I know, the answer to your question is no. According to the specs page, the only way the WiFi model can get Location services is via WiFi geolocation. I've never heard of a device using bluetooth to get a location fix. That'd be cool though.