iPhone OS 3.0.1 is out.
Updates are pushed via iTunes. When you connect your iPhone via iTunes, the new updates will be installed.
For the first time users,
Updation will happen like a breeze. I was scared when my updates were going on via iTunes. I was worried that my data will be lost. But none of those disasters happen. Before updation, iTunes takes a back up of the data and then updates the OS. Once updated, it restores the backup. And iPhone is back to normal state…with new OS 3.0.1