Then there's the Apple kill switch. Since every iOS app, including mission-critical enterprise ones, has a profile and signed certificate, Apple can pull the certificate and kill any app it has a problem with, Buser says. It's highly unlikely Apple would exercise the kill switch, says Buser, Apple would probably just opt not to renew the app next year.

Either way, companies need to know what they're getting into as iPhones, iPads, and iOS apps drive deeper into the enterprise.

covers Apple and Networking for CIO.com. Follow Tom on Twitter . Follow everything from CIO.com on Twitter . Email Tom at tkaneshige@cio.com.

in CIO's Consumer Drilldown.