In hindsight, you really can’t call the HoverBar Duo an iPad ‘stand’. The multi-hinged, incredibly versatile, height/direction adjustable arm is capable of doing much more than your conventional stand is. In fact, think of it as a mechanical butler who just holds your iPad for you at any angle you want, for any length of time. More versatile than a stand or a tripod, the HoverBar Duo for the iPad and iPhone is better described by the things that it’s capable of… and it’s capable of quite a lot! More here.
One of very few accessories I have seen that could transform how a device is used. Not cheap, but still good value.