I myself use an i-blue 747 pro S with a MTK II chipset (more or less identical to the Qstarz bt-Q1000). It has no Mac support.
To use this device with my mac I use BT747
, a java crossplatform program.
The problem with these devices on mac is, if I understand correctly, the interfacing of the chipset. A serial interface is expected, which has to be emulated over usb or bluetooth.
You have to download a special driver
to do this.
The program is very feature-rich but you need to delve into some intricacies of GPS positioning, AGPS, precision, frequency etc. Very interesting to learn though.
BT747 can address more features than the manufacturer claims the device has. Also like gpsbabel, it outputs many file types like .gpx needed for Lr.
Even altitude shows up in Lr (I thought GPS coordinates in Lr were only horizontal, but I could be wrong). In the Netherlands we have many places with negative altitude (below sea level), but have to test it as my lowest recorded value yet is 5 metres.