Awesome. I was going to do something similar with an old binder from a conference but the dog got it too (see "Anyone got an extra case? thread)
EDIT: I was going to use vinyl tubing cut lengthwise to form flexible clasps for the top and bottom, maybe even a side, if anyone wants to give that a try. Oh, and the dog also got my prototype case that I will be posting the design for here soon, after I rebuild what she destroyed. Luckily I noted the dimensions.
Asus Transformer - AOKP
Nexus S 4g - AOKP
Sony Liveview - (reserved for Open Liveview