2 important updates by their sizes and number of bug fixes improving stability, performances and general compatibility for the Microsoft Office suite.
Office 2004 goes 11.5.0 (45 Mb), Office 2008 updated to version 12.1.1 (153 Mb) and the new Open XML documents converter 1.0 (45 Mb).
- Office 2004 11.5.0:
Adds read/write compatibility for Open XML Format (.docx, .xlsx, etc.) files if installed with the Open XML Format Converter
Better stability and printing/page setup fixes for Word
Better paste compatibility with Office 2008 for all apps
Powerpoint fixes for stability with large documents
Download here.
- Office 2008 12.1.1:
Several issues are fixed with the updates, including charting problems, Entourage crashing when the computer wakes from sleep, and issues regarding converting documents to and from the Open XML Format.
Download here.
NB: before installing the Office 2008 update, you gotta make sure you have version 12.1.0 installed. Yes… No combos for Microsoft Updates.
Steve Jobs didn’t show Snow Leopard (Mac Os 10.6!) in his keynote, it will be presented later today.
It will be an update to optimize OS X and to prepare it for the future.
More details here
Apple has already sent a Beta of the next update for Leopard.
It may seem a little “anticipated” especially with the good feedback for the previous update (the 10.5.3) but i guess that’s the normal evolution pace to have a fully-optimized OS 
the 10.5.3 update brought a new featurre to Adress Book : Synchronization with Google, which finally was only possible for those who own an iPhone or an iPod Touch (so you keep your gadget, your Mac and you Google Account synchronized).
To enable it just go to the preferences panel of Adress Book.
It’s now possible to do the same thing without owning any of the portable device, just follow this How to
It’s a security update, good news for all Camino users (like myself as a 2nd browser).
Get the update here.
Apple has finally updated its iMac and Mac Mini lines!
The iMac is now available in 4 different models, starting at 1.199$ for the 20-inch iMac and 1.799$ for the 24-inch model.
The updated iMacs are shipped with a 2.4, 2.66, 2.8 or 3.06 Ghz Core 2 Duo processors.

Visit Apple’s website to see the full tech specs

According to AppleInsider, the latest update of Leopard (10.5.3) should be available in less than a month.
It seems Apple released 3 betas in less than a week, the latest version appears to be clean, no bugs anymore, and it fixes more than 31 bugs, especially the Back to My Mac, Spaces, Time Machine and Airport.