Just when you thought you couldn’t wait any longer, we go and snag an internal PowerPoint shot of some super-duper BlackBerry document. OS 4.5 is currently targeted for a mid-September launch on AT&T for the BlackBerry 8120, BlackBerry 8820, BlackBerry 8310, and BlackBerry 8300. We’ve covered the updates in the new OS, but for a quick recap, you’ve got HTML email and formatting, remote server search, free/busy calendar lookup, video recording, improved media player, and Office document editing on the devices. Mid-September it is, with those devices shipping pre-loaded in mid-October with OS 4.5. Click through for the larger shot.