Presumably, they've done something to correct the tuning issue with that album; I.e. The fact that if you tune to standard a440, you won't be in tune with the songs.
I'm using it on the iPad and it is kind of fun. I don't have a line in, and am playing along with an acoustic, so I don't know how the in app guitar sounds.
It keeps crashing on me. Downloaded the app to my iPhone, got through the introduction part then bam - nothing. Even just updated my latest iTunes and iPhone software but nada. Kinda sucks cause I already have the iRig connection - which is pretty cool itself for what it's designed for - so I'm hoping someone has some advice for me - or the developers read this and fix it so the updates work.
When all else fails - delete and download app again for another try - this time I got through to the accept terms screen and the app started. Looks pretty cool with the scrolling tab. If it keeps working I may be in for a few hours of some fun tonight.
The only one I seem to be having porblems with is the most complicated one...and that's the one I wanted it for. Just a fun practice tool...but the tracking and seem to get a little overwhelmed and it crashes...it will get fixed.