This situation is hardly new; Dalvik is (unsurprisingly) similar to the Danger VM and a few other unlicensed embedded pseudo-Java VMs. (Blast from the past: <a href="http://www.networkworld.com/news/0323sun.html" rel="nofollow">http://www.networkworld.com/news/0323sun.html</a>)<p>I disagree with the analysis about patents. Dalvik has Java semantics and probably infringes several Sun patents. But all software these days infringes patents; who cares.