This is bloody aggressive.
I'm going to have to start talking about Google's November Blitzkrieg, a sudden, vicious attack on three fronts : against Microsoft, Sun and Facebook (with MySpace rapidly surrendering and getting with the program).
The article makes a convincing case that this is a decisive blow against Sun's mobile platform aspirations. What is likely to happen is that they'll either sue for peace by falling into line with Google, and accepting the effective merger of Java and Dalvik now under Google's leadership and fully open source. Or they'll fight on, but without any real chance of success.