I work in a very dusty enviroment (solid surface shop). I keep my phone in a hard case as well as a soft belt pouch. I also take the whole thing off my belt and keep it in a tool box while in the shop. My question is will the dust kill this thing? I worried about my blackberry and when I knew I was changing i beet the hell out of the berry and it never failed. I wont do the same to the Evo but was just wondering.