The iPhone 2.0 software will become available in July for free to iPhone users, and $9 for iPod Touch users.

Here’s some new features of the software:

—Push Notification Service: Developers were asking for this. They want people to be able to receive an IM or an email when the application isn’t running. But they don’t want the app to run in the background because it drains battery life. They said Windows solved this problem by keeping them running, and then you have task manager, where “like a game, it challenges the end user to brush off their computer science skills, and think about which one is eating up your CPU, and then kill it – this is nuts.” Apple (NSDQ: AAPL) will maintain a persistent IP connection to get around this. It goes through our service to your users. You can push batches, or alert sounds, and you can push custom textual alerts. It will be available in September but next month it will become available to developers.

Jobs announced other features:

—Contact search
—Added full iWork document support, pages, numbers, and keynote
—Completed the support of Microsoft (NSDQ: MSFT) documents, word and excel, but now there’s PowerPoint, too.
—Bulk delete and move
—Save images from email to the library
—Calculator: now it’s scientific when you turn it into landscape mode
—Parental controls: can turn off access to the App store.
—Languages: two forms of Japanese, and two for Chinese, including one where you draw the character with your finger.