Preview at WWDC likely in June, followed by September launch.
Apple Launches 2013 'Back to School' Promotion with Gift Cards Up to $100
Buy a Mac for college, get a $100 App Store Gift Card - and also save with education pricing. Or buy an iPad or iPhone and get a $50 card.As in past years, the Mac mini is excluded from the promotion, while all iPad (fourth-generation, iPad 2, and iPad mini) and iPhone (5, 4S, and 4) are eligible. Full requirements for eligibility are outlined in the terms and conditions (PDF).
The offer is available in the following countries, with gift card amounts varying based on local currency: Austria, Belgium, Canada, Denmark, Finland, France, Germany, Ireland, Italy, Netherlands, Norway, Spain, Sweden, Switzerland, United Kingdom, and United States.
Update: Photos of new window displays for Apple's retail stores:
Update 2: Photo of Back to School brochure: