Apple provided testers and developers with a new pre-release version of Mac OS X 10.3, code-named Panther. The update was marked build 7B21, the first “B” series Panther build to be seeded. A new version of Xcode Suite was also seeded, with “issues addressed in almost every component,” according to the read me. Read more about it at ThinkSecret.Elsewhere, Trans Intl. has announced the availability of a 1GB DDR333 (Double Data Rate) memory module for Apple’s 17-inch PowerBook G4. The new 1GB memory module, which appears to be the first on the market, enables you to double your PowerBook’s main memory to 2GB of available RAM. Previously, it was only possible to add two 512MB modules for 1GB of total memory in the latest PowerBooks. Read about it at MacMinute.