Google engineers implemented a 'clean room' version specifically so they can update their platform for their own specific purposes. It's not 100% Java compatible and therefore would fail the compatibility tests. (Breaks the 'write once run anywhere' concept) Google's version is optimized for mobile platforms and doesn't even compile to byte-code, like Java does, so it cannot run on other Java virtual machines and can't be called Java. It only uses Java syntax (...
The files cited by this article have all been shown not to to be copied or were test cases used for testing compatibility and not meant to be shipped, and have subsequently been removed:
http://www.zdnet.com/blog/b...
Most of Oracle's case is based on patents, not copyright.
Why would make it upgrade-only?
Either A: The new lightboxes aren't ready but the headsets are, so why not make ca$h in the meantime.
B: Marketing forecasts show current customers are the milkiest not only purchasing the upgrade but also the full 2.0 next Summer when the wireless headset saves our souls.