This rumor come from Digitimes, a publication with a roster of sources that is impressive in size, but sometimes leaves a lot to be desired in accuracy.
Digitimes cites sources from Apple’s “upstream supply chain”.
The Ultrabook platform was developed by Intel as a response to the form factor that the Macbook Air pioneered: performance, battery life, and small form factor at midrange price point.
Intel has allocated a fund of $300 million for development of the Ultrabook platform, and an additional $100 million for the development of an ‘iTunes’ style app store.
Digitimes’ sources believe that Ultrabooks won’t see their renaissance until the launch of Windows 8.