My Opera writes:
"We have some excellent news! Lars Erik Bolstad, the Head of Core Technology at Opera Software, sent me the following information to share:
We will release a technical preview version on labs.opera.com within the next week or so. For now, the screenshot above shows the Acid3 test as rendered in our latest WinGogi Desktop build. WinGogi is the Windows version of our reference builds used for the internal testing of Opera's platform independent Core."