Looks like fun, I can't wait to get my GPS hooked up so I can play with it... I'm a compulsive mapblast user whenever I'm going somewhere I havn't been before, so this would save a lot of trees...

Is there any way for it to overlay sound on top of the music? Verbal directions would be a nice addion if it doesn't have them already. I'm glad someone's actually coding this and leaving it as open source.

Thanks,
Matthew