As BYOD becomes more pervasive and mission-critical, this kind of self-service won't hold up. "You don't really have control of the device and data if employees are solely responsible for managing the device," Park says. "At that point, the company has abdicated control of some of its assets."

Bottom line: CIOs will have to invest in help desk support for BYOD.

Let's face it, mobile BYOD means more platforms to develop apps for and support. Sure, many CIOs don't allow reportedly leaky Android devices into their BYOD programs. Nevertheless, BYOD may eventually lead to internal, native iOS app development for both the iPhone and iPad.

The cost of internal app development can rise dramatically with BYOD. Companies that "go native" must invest in each platform in the BYOD portfolio.