Yeah. Wish it was more protected around the border instead of just the corners. As for portrait mode, it looks as if there is a bit of reinforcement that would suggest that you can.
Yeah thats the problem I seem to encounter with cases that do not hold your ipad from the top, it usually holds it from the corners and offers little protection anywhere else. What Im actually wondering is how well it stays in there if its on its side or turned upside down since its only held in 4 places.
An awesome idea for holding the iPad in place that no one has even considered yet is with a large suction cup on the back side you would lay your iPad in and it would hold with pure suction. Nothing else would really be needed as suction can be stronger then most human force. A small tab could be placed near the top that you would pull to release the suction.