On the surface, FrappeDesign's Executive Folio for iPad ($69) looks like many other flip-closed folio designs we've previously seen for Apple's tablet computer, offering a faux leather exterior with interior pockets capable of holding business cards, envelopes, a pen, and of course an iPad. But this particular design offers something rivals almost invariably do not: there's just enough of a footprint to squeeze unfolded 8.5" x 11" pieces of paper…