We have featured quite a few different stands and docks for the Apple iPad here at Geeky Gadgets, the latest one is the iBendXL iPad Stand. The iBendXL iPad Stand is about the same thickness and weight as a piece of card.
It is designed to be easy to carry and use, and can be carried around flat, when you want to use it, you simply bend it into shape, and slot in your iPad.
It seems like a clever, yet simple solution, and might be quite useful whilst travelling. The iBendXL iPad Stand is available for $10 from iBend and there is also a version available for the iPhone for $5.