Name a single open source application that already uses GDF. Any one, I don't care. I'm actually curious to see how it works, and like the last 20 messages said, I don't have time to write a parser for it myself.

(BTW: I'm not paid by Teleatlas)
I believe you.

It just looks like a lot of "cart before horse" from here, and I don't mean you particularly, either, so please don't consider this a personal attack; I don't mean it that way.