I did the same with a very manual process, though Apple's Address book exports multiple 2.1 vcfs as multiple files.You then just have to open them manually from within contacts - your SQL method sounds much more attractive

I'd appreciate the contacts parser if you wouldn't mind sending it....

And on the subject, whatever you do, don't forget to backup the database before a flash upgrade. The standard backup applet doesn't copy the contents of the .gpe directory, unless there's some magic I didn't see when I backed up