I am. I know ho/po's are there. But they are in no way displayed correctly, As they are displayed in the real GH game or in FoF for that matter. I've did a comparison with my GH3 Custom, FoF and GuitarFun. On GH3 and FoF, the songs that i tested (all GH songs), the notes display the same and correctly. In Guitar Fun, it's not the same. I really don't think GuitarFun is reading the bpm's of the charts correctly AND it's not accounting for the bpm change during the song as well. With alot of these songs, bpm changes occur constantly in the chart. Even strings of notes don't display correctly sometimes, meaning that the notes aren't evenly spaced. I'll try to take screen shots and show you what i mean.
EDIT: To see what im talking about quciker . For example.. Play Franenstein (from GH1) on Expert in FoF. and then play it in GuitarFun on Expert. and notice the HUGE difference. It's totally different.