It's OEM pouch and either my right front pocket, or my backpack.
Is it me, or is the vibrate in this phone (8320) not very frisky? I normally think it's something crawling on me, before I realize it's the phone. All my other phones I'd know it was vibrating, even if it was in my backpack.
Ya know my 8310's vibrate doesn't work at all sometimes, but when it does it's very weak. So no, it's a design flaw.