Some reports coming out about unhappy details concerning iPad behavior. One is Keynote: Apple apparently did a terrible job with compatibility. If you open a Keynote presentation–not PowerPoint, mind you, but a Keynote document–using Keynote on the iPad, it changes the document, destructively to some degree. It literally strips out presenter notes and custom slide masters, changes all the fonts to ones resident in its system, and reformats the slide to match iPad dimensions, changing the arrangement of objects. Send the document back to a Mac, and you’ll find that information simply gone–which seems stupid as Apple could have easily preserved it, if only as a version or layers of a document (iPad elements vs. Mac elements). These issues will likely be less severe with Pages and Numbers, as those documents rely less on monitor-specific layouts, but you will still probably lose any special fonts used.

Furthermore, despite what was implied by Jobs using his iPad projected on the big screen, the iPad you get will not be able to project everything on an external monitor. Keynote will show, as well as movies, but Safari will not, nor will the home screen. Apparently only apps outfitted with the right API will show up on an external monitor. So much for giving on-screen demos of the iPad.