Related to this, the added processing power of the new A5 dual-core chip in the iPhone 4S should boost performance of graphics-intensive apps like Roambi. For IT departments that want flashy graphics, as well as to improve performance of virtual private networks and on-the-fly encryption on the iPhone, Freimark says, "the new chip effectively raises the bar."

For super-busy executives, virtual personal assistant Siri should be a godsend.

Apple showed off Siri at the iPhone 4S launch, whereby Siri was able to understand and connect spoken words such as rain and raincoat, read text messages, take dictation, access apps such as alarms and calendars, and even create geo-fences that will, for instance, remind you to pick up some milk after leaving the office. For a CEO, this functionality could be invaluable.

While Siri sounds like something out of Star Trek, one big question remains: How will Siri perform in the real-world? It's a wait-and-see game, of course.