Apple has been continuing its two-week update process and iPhone OS 3.0 Beta 3 has just been released for registered developers.
The new Beta version significantly improves the performance and has a lot of bug fixes, so if you’re already with iPhone OS 3.0 Beta 3 (Build 7A259), then you should consider upgrading to this new build, 7A280.
Registered Apple Developers can download iPhone OS 3.0 Beta firmware directly from Apple. However, if you’re not a registered developer, you can use the following torrent network links to download the firmware, thanks to the hacker community!
Torrent iPhone OS 3.0 Download Link 1
Torrent iPhone OS 3.0 Download Link 2
BOTH LINKS ARE DEAD AT THE MOMENT, HENCE REMOVED.
Of note, this is an advanced level installation, so only proceed if you have a good understanding of the how to properly install a new firmware updates to your iPhone. If you have an unlocked iPhone, I suggest you not install the new firmware and wait till the iPhone Dev team releases a patch for this latest firmware.