I've seen the Cruzerlite Bugdroid posted, but it appears to be more of a gel/transparent case and it also has smooth sides. I also found the Spigen Ultra Fit that boasts an anti-slip feel, but I don't like the fact that the top and bottom are open.
I just got a Verizon G3 last week and love it so far, but I'm looking for a specific type of TPU case. I received my Diztronic case today, but it's way too slippery. I'd like a case like the ZooGue case I had on my S III, one with ribbed/ridged sides to prevent it from sliding out of my hand. Does anyone know of a good quality TPU case like this? Failing that, what are some TPU cases with good grip? I'd still like something have provides good protection, but I don't want it to add too much bulk.