Apple today previewed its iPhone 2.0 software, scheduled for release this June, and announced the availability of a beta release of the software to selected developers and enterprise customers. The iPhone 2.0 beta release includes both the iPhone Software Development Kit (SDK) as well as new enterprise features such as support for Microsoft Exchange ActiveSync to provide secure, over-the-air push email, contacts and calendars as well as remote wipe, and the addition of Cisco IPsec VPN for encrypted access to private corporate networks.