It is also clearly illustrated by Apple's statement:
What makes iPhone a great business phone?If you want to know more, and maybe about the price of the iPhone 3G in your country, check your local Apple Store
Simple. The same features that make iPhone a revolutionary mobile device. And now with iPhone 2.0 software, iPhone does even more for your enterprise. It supports Microsoft Exchange ActiveSync, delivering push email, calendar, and contacts. And it gives mobile users secure access to corporate resources with Cisco IPSec VPN and network services with WPA2 Enterprise and 802.1X authentication.
