Likewise, for Notes on the Mac, iTunes is the go-between as described for Exchange -- and you will need a separate app, such as Information Appliance Associates' PocketMac GoBetween, to make iCal and Address Book sync with Notes. Ironically, there doesn't appear to be a way to get calendar and address book data from Notes to the iPhone in Windows. If IBM follows up on its promise to ship a Notes client for iPhone, there'll be no need for a third-party app or other work-around.
You can, of course, access calendar and contact data without connecting through the desktop by tapping Exchange or Notes Web access via the iPhone's Safari browser. Unfortunately, navigating those desktop-oriented pages even in the iPhone's fairly large screen makes this method a somewhat frustrating quick fix.
Securing the iPhone
The biggest issue for IT when it comes to the iPhone has been security, even with the availability of SSL authentication for securing e-mail connections. Make sure your Exchange or Domino server requires SSL and one of these SSL options: MD5 challenge-response, NTLM, or HTTP MD5 digest. The iPhone also supports password-based SSL authentication, but that can be more easily spoofed than the other options.
All SSL does, however, is encrypt e-mail messages, not any other traffic between the iPhone and the company's servers. Typically, you would mitigate this concern by using a VPN client -- or a BlackBerry or Motorola GoodLink server and its proprietary secured network -- as the conduit to safeguard all traffic with the iPhone.
The iPhone didn't originally support VPNs, but Apple added that capability via a software upgrade in late 2007. The iPhone's VPN capabilities are solid -- comparable to Windows Mobile and Palm OS devices -- with a choice of L2TP and PPTP protocols and support for EMC RSA Security's SecurID key-based authentication. (You access those through the General preference pane's Network option.) But the iPhone VPN client does not work with all VPNs; Cisco-based VPNs in particular are incompatible unless they are set specifically for Mac OS X and iPhone compatibility. The June iPhone software update will improve VPN capabilities by supporting Cisco IPsec and two-factor authentication, certificates, and identities, Apple said.
Three security issues have caused the most complaints from IT, when compared with Windows Mobile, Palm OS, and BlackBerry. Apple plans to address all three in the June software update, though the details are not yet fully clear.
First, the iPhone has not provided device encryption, meaning that any data stored on the iPhone can easily be obtained by a thief. With nearly 16GB visible to PCs as an external drive when connected over USB, the iPhone can store a lot of could-be precious corporate data.