in an effort to get OS X 10.5 users upgraded to Lion/iCloud before MobleMe’s shutdown on June 30th, Apple is giving away free copies of Snow Leopard to MobleMe users still running Leopard. This offer is only valid until June 15th, and Lion must still be purchased for $30 via the Mac App Store after upgrading to Snow Leopard. MobileMe users that fail to upgrade to Lion, and migrate to iCloud, will lose access to their MobileMe services including: email, contacts, calendar, and bookmarks.

For more information, visit this link, and login using your MobleMe account: https://www.me.com/snow-leopard/