In Part 1 of this series, I looked at the mechanisms available to IT staffers to activate, deploy and configure iPhones in business environments. But the biggest new business-oriented feature available on the iPhone, thanks to the iPhone 2.x firmware (included with the iPhone 3G and available for free to users of first-generation iPhones or for $9.95 for iPod Touch users), is the addition of ActiveSync for accessing Microsoft Exchange.