As a part of today's WWDC announcement, Apple showed a new OS X Yosemite feature which automatically shunts phone calls and text messages from your iPhone to your Mac. This all ties in with a bunch of other useful new AirDrop-related features.
Your Mac acts as a speakerphone for your calls, while you can enjoy a full keyboard to answer texts. You can also initiate outgoing calls and SMS messages through the new feature. Pretty sweet new feature, eh? Do you see yourself using it regularly? There's plenty more news coming out of WWDC today, so stick around!