Playstation 3 firmware version 1.93 is now available for download. However, it seems that people are having connectivity issues in an attempt to download the newest firmware. The alternative source takes you to the official Playstation forums were you can read accounts of download issues.
Also, here is the following error statement I received while downloading:
An error occurred during the download operation. A connection to the server cannot be established.(80028E07)
It seems traffic on Sony's servers have eased up a bit and I have just finished downloading the firmware. As previously expected, the update does nothing more but fix the networking issues seen with FW version 1.92.