The announcement from Apple Chief Operating Officer Peter Oppenheimer confirms an exclusive report from AppleInsider on Monday. Also rumored to launch is a refresh to the thin-and-light MacBook Air notebook, powered by Lion.
Update: Accordingly, Apple on Tuesday released Migration Assistant Update, allowing users to prepare their Mac for the update to Lion through the Mac App Store. It is a 312kb download available via Software Update or direct from Apple.
"This update addresses an issue with the Migration Assistant application in Mac OS X Snow Leopard that prevents transfer of your personal data, settings, and compatible applications from a Mac running Mac OS X Snow Leopard to a new Mac running Mac OS X Lion," the official description reads.
Apple has been holding off on the introduction of new Mac hardware until it finally releases Lion. Apple had not previously not offered a specific launch date for the operating system, only promising that it will become available on the Mac App Store for $29.99 at some point in July.