I got this response from the developer and hope its ok to post here, can anyone shed any insight on this:

Thanks for using GPS Track, I'm glad you like it.

It certainly makes sense to use the internal GPS if you have one. It isn't that common, since you are the first person to ask for this feature. The internal GPS would have to be available from Java (JSR-179 Location API). According to the J2ME Polish site, here are the Blackberry 8800 capabilities:

J2ME Polish: BlackBerry/8800 J2ME Specification

The 8800 is not on the list of devices supporting the location API:

J2ME Polish: Devices supporting the Location API

So I think it wouldn't work for you, unfortunately, unless the J2ME Polish site is wrong about the 8800.