I guess my comment seemed, somehow, to be praising Java. Java is a setting sun, and becomes increasingly irrelevant in web apps by the day. The JVM, on the other hand, might turn out to be very relevant, due to the increasing number and quality of dynamic languages that run on the JVM. And the JVM is not something that can be claimed to have lineage from Objective C (since ObjC has no VM).

Anyway, I just think the hyperbole is way out of place. Apple is not going to dramatically alter the web app development landscape. Some people (mostly people who've built Apple desktop apps) will find Objective-J a more comfortable way to build web apps, and that's wonderful. But it's not a world-shaking thing.