Yes, you can. At the end of the campaign, before your final pledge payment, you'll be asked if you'd like to add extra SpinCubes to your pledge. At that point, you'll be able to add any number of additional SpinCubes.
Yes. With the help of our innovative SpinCaddy key fob, you can spin the SpinCube on a flat, horizontal surface. Here's a video that shows you how.
Don't see the answer to your question? Ask the project creator directly.