So I have the original rubber HP case that I bought with my TP. I'm not sure if they used cheap material or just didn't go proper research but this case is coming apart at the seams. The rubber at the edges just seems to be warping really bad and this week one of the pieces just broke. What do people recommend for a good sturdy case for the TP that is also easy on the wallet? I have a TouchStone so would also like it to work with that.