Apple recommends upgrading to OSX 10.5.3
Google blog talks about Address Book sync with Google Contacts. I wonder how many more years before we see iTunes and Blogger integration.
Here is a complete list of changes and fixes in 10.5.3.
General

Fixes a font issue that could result in Helvetica Narrow being used in applications instead of Helvetica.
Addresses [...]

Follow this link
http://deimos3.apple.com/WebObjects/Core.woa/Browse/uctv.tv

via Apple Hot News on 5/21/08
From “Babies by Design” to “San Diego Opera Talk” to “Health Matters,” the University of California Television delivers a wealth of highly informative programming to iTunes U. Explore the hundreds of audio and video podcasts you can enjoy on your Mac or PC [...]

Was planning to write my analysis on Roku and how it impacts AppleTV/iTunes market. On first read this is a game changer and will make Apple react to this product.

via Podcasting News by James Lewin on 5/19/08

The world of Internet video just got a lot more interesting.
The Netflix Player by Roku is the first product [...]

AppleInsider is reporting that Apple is testing location aware iPhones with few select enterprise customers. 

People familiar with the release, reportedly labeled build 5A292g, say location-aware services such as "Maps" and "Camera" now ask the user's permission before transmitting data used to identify their current geographical location. 
The addition as it applies to the Camera application is [...]

Lot of people ask me why is iTunes important. Thanks to Phillip Elmer’s numbers I can back up my confidence with pure numbers. Read this and hold on to your eyes.

46 carriers announced to date (up from 6 currently)
42 countries covered (up from 6)
575 million total available market (up [...]