Updated already? Here are two in-depth looks at what's new in iPhone OS 3.0:
- The iPhone Blog: iPhone 3.0 Software Walkthrough
- iSmashPhone: How To Use The Best 40 Features of iPhone 3.0
- iLounge: Secrets & Features of iPhone OS 3.0
- Macworld: iPhone 3.0 software update
- PCWorld: iPhone 3.0 Update: 10 Hidden Features
iPhone 3.0 Push Notifications doesn't seem to work with Orange Romania for the time being.
Update 1: I was wrong about Orange—once you have installed an application that uses Push Notifications, a menu option appears in the main “Settings” app where you can configure your Push Notification preferences. No menu if you have no compliant apps, though.
Update 2: Dan Berte reports that Orange might have "some port limitations on the data plan" which could cripple Push.
Update 3: Mystery solved: no Push Notifications in Romania.
Update 4: Mystery re-solved: I was wrong.