I jailbroke my phone yesterday, and since then I have experienced quite a bit of lag. At times, it just sits and sits. I've noticed that this happens particularly when I am installing an update for an app store app. I've had it just there, and appear to be locked, so I rebooted it, and it didn't finish booting for several minutes! The apps that I have installed are a few theme elements, NES, Scrobble, Boss Prefs, Video Recorder, SSH, and Mobile Terminal (sort of). This is on a first gen 16 GB iPhone. Could it be the theme that is slowing things down? I feel liberated from the jailbreak, but I am also feeling a little let down from the performance. I mainly did the jailbreak for two apps--Scrobble and NES. I'm thinking of dumping everything else, but I don't know yet if I should do something so drastic.