Remember when you first saw the iPhone? Glimmering like a rare jewel at the Apple store, the debut model was originally dismissed as a bit player in the enterprise, especially compared to the (ahem) BlackBerry. Now, just about every high-ranking corporate official, not to mention pre-teen, has one in his or her pocket.
What other technology, gadgets and enterprise services have changed business in such a dramatic way? For most IT leaders, there's a good chance a CRM tool or even a seemingly minor Web technology such as OAuth made more waves over the long term. These innovations caused a sea change of their own. In fact, we're trying to figure out how anyone ran a company without them.