Marco TabiniPCWorld

Marco Tabini is based in Toronto, Canada, where he focuses on software development for mobile devices and for the Web.

OS X Yosemite Federighi

Apple's new OS X Yosemite will be free upgrade, with deeper ties to iOS than ever before

Due this fall, OS X Yosemite will include major changes to the interface and underlying system components. The iOS integration will let you handle calls and messaging from the desktop. Coolest of all: a free public beta program to test the OS before it ships.