Yeah, I checked it out. It seems it needs you to be online. In Spain, free wi-fi hotspots are scarcer than diamond mines, so I don't think I will pay for a data retrieving app. Also, I read about the ongoing "official" app validation progress.
As bad a guitar player as I am, i've been long enough into it to prefer more complex tabs. If you ever manage to display right all those tabbed solos and fills on the iPod, that would be incredible. I know it's not the Chordie purpose, but that would be definitively my #1 on the wishlist.