I have a 32GB 3GS with 3.1.2 on it and it's jailbroken with blackrain. I never had any problems with it until today. Suddenly it started using up space automatically. I had maybe 200-300MB left. Then I suddenly get the pop-up saying I need to remove some videos or music because there's no space left. Then I connect it to my iTunes, and I see the iPhone is just named "iPhone" - not the specific name that I've given it. I also notice a pop-up on my iPhone that says "iPhone activated" - never seen this message before. Anyway, on the storage bar in iTunes it says I have 2GB free space. I'm thinking this is a glitch so I remove 700MB's worth of apps. When it's done syncing the storage bar says 700MB space left, and when I check on my iPhone it also says 700MB. Then I leave the phone in my computer to go eat dinner, and 30 minutes later when I come back I get the same damn message saying I need to free up some space. I go to check how much space I have left (I use SBSettings - the one that let's you slide your finger across the status bar) and I see it says 700MB, then it updates to zero. What the hell??!