But in a business like retail sales, where you have multiple people sharing a device, companies want a single type of device.

FORBES: Windows 8 Enterprise Adoption Will Be Segmented By Users - Avanade

Chuck Gerba, an environmental microbiologist at the University of Arizona who is studying bacteria on touchscreens, says it's possible for people to contract a disease from sharing a device like an iPad.

WSJ: Greasy Smudges Frustrate iPad Owners

The 2013 lineup will enhance inter-device sharing further by implementing Tag On.

ENGADGET: LG details LCD, plasma HDTV lineup for 2013: 4K, Miracast, NFC, WiDi and more