Sources are claiming that Apple has updated its original Mac OS update for Intel based Macs. Although the update has not been changed in Software Update as of yet, Apple did send out a notice to its security email list:
"the install package that upgrades a Mac OS X v10.4.6 (Intel) system is being revised.... to provide several files related to OpenGL performance that were missing. Only the package that upgrades a Mac OS X v10.4.6 (Intel) system to Mac OS X v10.4.7 (Intel) is being changed. All other Mac OS X v10.4.7 install packages remain unchanged."
[Update] Apple has now pushed the update out via its website, users are reporting to World of Apple that the download in Software Update is still the old version, let us know if this changes.
The new build number is 8J2135a and the new MD5 Checksum is: 10aa57dfccd63accb0939a894cea202a8910fb45