Robert Scoble breaks the news that Sun has GPL'd Java. Tim Bray has the details.
Now, some would argue that this is a reactionary move (albeit a rather delayed one) since C# is already an ECMA standard, and the .NET Framework has been released under the CLI Shared Source Initiative.
But whatever side of the fence you are on, let no one say that great innovations aren't happening in the developer space at both companies.