Occasionally, my touch-screen will behave irregularly. For instance, in the text message list view, I'll select the top conversation, and it will select the 4th, or 5th convo half way down! It will do this persistently, for 3, 4 or 5 tries - I seem to be able to bypass it by just holding down the top conversation for a few seconds. It's not just that app, it's the same in email, and it's the same in Safari, where I double-tap the portion of the screen, and will scroll half way down the page as a result. Is this grounds for a replacement, and has anyone else had this issue? I'm sick of it, and makes using my iPhone a fingers-crossed type of experience.