Yes, I had a Seidio innocase for my Pre as well, and the tabs broke off the front and back pieces ~ on BOTH sets =\ Just had to go bareback, lol. That case indeed made the Pre a bit bigger, so depending on your hands and comfortablity, I think the Evo will get a little bit thicker with some cases. I'm leaning toward some sort of gel-casing myself, nevermind the thickness - I need to protect my beautiful investment!