HoRNDIS, (pronounced horrendous) is a driver created by Joshua Wise for Mac OS X users with 10.6.8 and above.
Now there's a new Android app on the market that lets you connect your un-rooted device to your MacBook for easy web access without any hiccups. While USB tethering your Android device to a Windows-based laptop is pretty easy, Mac users were required to root their phones in order to get the faster, more stable USB tethering to work.