About AirPort Client Update for MacBook and MacBook Pro
This update is recommended for some Intel-based Macintosh computers running Mac OS X v10.5.8 and addresses an issue with AirPort performance while running on battery power. It may only be installed on:

MacBook (13-inch, Late 2007)

MacBook (13-inch, Early 2008)

MacBook (13-inch, Late 2008)

MacBook Pro (15-inch, Early 2008)

MacBook Pro (17-inch, Early 2008)

MacBook Pro (17-inch, Late 2008)

"About Safari 4.0.3
This update is recommended for all Safari users and includes improvements to stability, compatibility and security including:

Stability improvements for webpages that use the HTML 5 video tag

Stability improvements for 3rd-party plug-ins

Stability improvements for Top Sites

Fixes an issue that prevented some users from logging into iWork.com

Fixes an issue that could cause web content to be displayed in greyscale instead of color

For detailed information on the security content of this update, please visit this site: About Apple Security Updates."

Here's a direct link to the doc About the security content of Safari 4.0.3.
(FYI - sometimes addons can be broken by Safari updates. There's a 1Password 2.9.24 update now that notes Safari 4.0.3 compatibility.)

• About the security content of Safari 4.0.3
• About the Multi-Touch Trackpad update 1.1 for Windows XP and Vista
• Color 1.5: Projects created in previous versions of Color may not send to Final Cut Pro as expected
• GarageBand '09: Guitar input may not appear on PowerPC-based computers (fixed in GB 5.1 update)
• OS X v10.5 or later: About Disk Utility's erase free space feature
• iPhoto: Difficulty submitting a book, card, or calendar order

• iTunes 9 screenshots probably not the real deal
• More iTunes 9 details, Apple developing social networking application?
• Snow Leopard vs. Windows 7: The War of the Wallpapers
• SlingPlayer for iPhone 1.1 in the works
• Top 10 Must-Have iPhone Business Apps
• 5 Reasons It's Time For a Verizon iPhone
  
  Software Updates: (later added items first)
• 1Password 2.9.24 (updated for Safari 4.0.3 compat., more. .23 was quickly replaced by the .24 update.)
• Microsoft Remote Desktop Connection Client for Mac 2.0.1
• Cocktail 4.4.1 (Leopard Edition) (updated for 10.5.8, more)
• VueScan 8.5.23
  
  Other/Misc:
• Kodak's Pocket video wonder (Zi8 Pocket Video Camera review)
• Studios to Take on Hulu with EpixHD.com
• Intel, Micron Unveil 3-Bit-Per-Cell NAND Technology
• Nvidia's Chief Scientist talks about GPU technology, DirectX 11 and Intel's Larrabee
• Xbox 360 System Update now available