With Apple's latest update, it appears the company has stopped issuing security updates for OS X 10.5, which means that PowerPC-based Macs will be left more vulnerable.
Apple recently updated the Mac Mini with Intel Core Solo and Core Duo chips. Apple no longer sells models with the older PowerPC G4 processors, but you can still find such units available at various online resellers. Since the Intel-based models aren't any more expensive and they promise better performance and include more features, such as Front Row and a remote control, there's no reason to choose a G4-based Mac Mini unless you find a great deal as resellers clear out their old inventory. For our most recent coverage, read our review of the Mac Mini Core Duo.
The next version of the Digital Negative converter will be the last for PowerPC Macs. Does this have implications for Lightroom?
In OS X 10.7 Lion, Apple will officially do away with software support for the PowerPC architecture. Mac users may want to look at various applications on their systems to see about removing or updating them if they will not run natively on Intel machines.
Another coffin nail arrives for those with the older lineage: the Mac version of Mozilla's upcoming e-mail software will work only on Apple's newer Intel-based machines.
When Apple released some of the final updates to OS X 10.5 for PowerPC systems, a number of Harman Kardon iSub owners found their speaker systems no longer worked properly with their computers. The problem appeared to be a driver-related error but neither Harman Kardon nor Apple stepped up to fix the issue and owners had to resort to other speaker systems.
The difficulties of supporting some new architectural features on old chips mean Firefox 4 probably will work only on Intel-basd Mac computers.
Due to "performance enhancements that cannot be supported on the older PowerPC architecture," Flash Player 10.1 will be the last to support PowerPC-based G3 Macs.
The 17-inch PowerBook is sexy, and it comes with great extras, but it's not much faster than the Titanium model.
Cheaper and more portable, the iBook is a more than worthy alternative to Apple's top-of-the-line PowerBook.