I got my 3G on 7/12 and haven't had a problem with it up until a few days ago. I noticed that my apps had become very unstable, both App Store and Cydia apps. I tried using "Things" to add a to-do, and it would crash as soon as i changed the due date. I tried to update iSpazio in Cydia, it would get to the end, and then just close. I tried to surf the interwarbz in Safari and would only get a couple minutes before it would close. And then the scariest thing, i got a text about 20 minutes ago, and when i tried to open it so I could reply, the screen dimmed and flashed with horizontal lines across the screen and got stuck in a screen with nothing but a few lines on the right and top of the screen. I locked and unlocked it and every went back to normal, but is this a sign that my iPhone might be going?