big glitch in iPhone OS 3.0: it seems like the Spotlight search cache doesn't sync message status with the mail client, so you can still pull up old messages with Spotlight if you know the subject line. Yeah, that's not okay -- we just verified that the bug exists on our phones, using both POP and IMAP. We're not sure when the search cache finally deletes emails, but it doesn't appear to happen quickly: Matt Janssen, who discovered the bug, says he's been able to pull up emails three or four months old. We've heard whispers its fixed in iPhone OS 3.1, but until there's a confirmed fix we'll be using the Gmail web interface, thanks. Video after the break.