iPhone apps for businessmen

Can iPhone become a businessman's true abettor? With iPhone 2.0 software it probably seems so. WIth connection to Microsoft Exchange right out of the box, push email, and cool enterprise application, iPhone can always be a businessman's darling. Further access to corporate resources using Cisco IPSec VPN and wireless network services with WPA2 Enterprise and 802.1X authentication all through a pocket gadged is what the every enterprise would prefer.