Depends on what you're looking for. I was looking for a single device to hold my calendar and contact data (without major issues) AND be a decent phone. Over the years, I've used multiple flavors of Palm and Windows CE/Pocket PC/Mobile devices - never to really find what I was looking for. Then there's Blackberry, which doesn't work for me, because my company doesn't support them. They don't support the iPhone either, BUT Exchange ActiveSync works just fine, once I was setup. Anyway...I've had issues with most of the Windows-based mobile devices, just slow, or crash/lockup, etc. The last being a false sense of security (showed good sync, even when it wasn't passing data). That was the last straw for me - SO, went for the iPhone, and VERY glad I did. I've had the new 3G iPhone since it's release - and couldn't be happier. Fetches my personal email, as well as my Corporate mail, contacts and calendar. PLUS all of the other handy apps I use on a daily basis (Epocrates, SkyScape AtoZ drugs, Fizz Weather, Google, AIM, SplashID, and more). The ONLY issue I've had is using MobileMe. Good in concept - hasn't proven itself in reality. Take the plunge.