Yeah, it would be good if the extra top weight could be addressed somehow. More base weight wouldn’t be ideal obviously. Maybe they could come up with some other clever design element to help keep it balanced at more angles. If not, then I suppose the user would just have to limit the range of tilt on their own. But either way, I don’t see it as a huge issue since portrait would just be optional. So the user could just use it when seen fit, like when at a desk and not needing to lean the iPad back too far.