Yup - it is going to be an interesting ride. Personally I don't think Android is going anywhere and based on the large architectural differences in the virtual machine I doubt the VM infringes. Where I wonder if Google will prevail is in the fact that you use Java syntax to write an android program. It is compiled to something other than Java bytecode but the language you develop in might violate some copyright issues. (Although in that case c# probably did too so maybe I'm wrong)