Gmail Mobile is now available! You can check your email via wireless connection with your mobile phone.

Because every mobile device is different, Gmail Mobile automatically optimizes the interface based on the phone. Users can also view attached photos and documents from their phone, and reply-by-call to people whose phone number is stored in their Gmail account. Gmail messages are automatically synchronized, regardless of whether Gmail is accessed from Gmail Mobile or the web. The service works with most web-enabled mobile phones.

• Quick links that identify addresses and package tracking numbers in emails and displays them to the right of users' Inbox so they can more easily access maps, directions, or tracking information with a single click.
• Gmail Web Clips, which appear at the top of the Gmail inbox and enable users to read Google News, a friend's blog, or any RSS or Atom feed from their Gmail account.
• Anti-virus protection that automatically scans messages with attachments.
• The ability to view attachments in HTML instead of downloading to the desktop or mobile phone.
• A vacation auto-responder, which enables users to automatically notify people when they're away from email or unable to respond.
• The option to create contact groups (one of the most highly-requested Gmail features)

Currently it is only available to U.S. cellphone users at http://m.gmail.com.