Also catching the CIO's eye will be the discounted price of the previous iPhone, in this case, the iPhone 4S, that follows on the heels of every next-generation unveiling. The iPhone 4S costs $99 for 16GB, while the iPhone 4 is free, with 2-year contracts.

"For standard apps, the iPhone 4S is a pretty good device," Bussmann says.

It's a good bet that the iPhone 5 will be a hit in the enterprise, and so CIOs have their work cut out for them. Even though SAP AG already has iPhone-support infrastructure in place, Bussmann says he'll be busy enabling the iPhone 5 to be a corporate device within six weeks.

covers Apple and Consumerization of IT for CIO.com. Follow Tom on Twitter . Follow everything from CIO.com on Twitter and on Email Tom at

in CIO's iPhone Drilldown.