BobJ Gear makes a fantastic silicone cover for many tablets including my older TF300. They are very thick and rugged while being reasonably priced. Basically it allows every tablet to be eventually designated for "kid duty". The TF300 has been tossed by my kid at least two dozen times and it survived each time thanks to the BobJ Gear. Needless to say, I HIGHLY recommend this case!
ASUS Transformer Prime TF201 (TF201T) and Pad 300 TF300 (TF300T) - BobjGear.com
The case for the TF701 has been downgraded from "We will start designing it" to "On hold" likely due to decreased sales of the tablet because of all the keyboard issues. Now I don't actually need this case yet, I plan to use the tablet for another year or two before passing it to the kids. But when that happens, I want this kid proof cover available! At this point, I don't know of any other silicone case available or even in the works for our TF701, so this may be the only option ever.
BOBj's WORKBENCH - BobjGear.com
So, if anyone else interested, please send an email to BobjGear@gmail.com
and tell them to put the case for the TF701 back on their list of designs to release. Thanks!