Thanks for remembering me! I ended up getting a pillow for iPad.
This looks like a much, much nicer solution. Unfortunately shipping to Portugal alone is 71 euros making this a truly unreasonable price for me. Hopefully they get really popular and come to Europe!
This is really nice for games optimized for the touch screen such as Football Manager or Magic the Gathering. Holding the deck with one hand and playing with the other is uncomfortable after a while.