As a proof of concept, this app works pretty well, but for me it does just one thing: it makes me want more and more a real layout design app for the iPad. Not a toy for "comps" but something I could do real work with it. Otherwise its useless. I cant afford wasting time making comps on an iPad if I have to do most of the work on the computer eventually.
TudorV about Adobe Comp, v2.4