I was typing something out for class during my free hour, and when I turned the iPad from landscape to portrait so I could use Underline (currently there is no toolbar showing up in landscape) it magically deleted half of what I had written. It wasn't TOO much stuff but it wasted like 8 minutes easily, and i was in a time crunch.... I remember when I just loaded up the app I had shaken my iPad (i guess?) because an Undo button popped up from moving it. The iPad brushed against my chest during the procedure, and maybe clicked the Undo button?? edit: Oh yeah, there is an Undo, but no Redo, so be careful when you press it.