At the Apple Worldwide Developers Conference today Steve Jobs specifically highlighted iOS4's support for the enterprise. "I wanted to hit for a moment on the enterprise integration - our customers are thrilled," Jobs said. He announced support for multiple Exchange accounts and support for Exchange Server 2010, as well as improved data protection, device management, and VPN support.

Four in 10 iPhones are sold to enterprise users and many businesses are planning to support the iPad, so it makes sense for Apple to improve in this area as well. The new features will make the iPhone competitive with Blackberry and Windows Mobile devices.

The improved data protection is a welcome enhancement in light of the data security flaw we covered recently. At present, there is no word on whether that specific issue has been patched.

Image via Apple's iPhone enterprise support site.