The sarcasm was more referring to the fact that Java (and to some extent Flash with Alchemy VM stuff) is already the best solution for cross-platform native san

The sarcasm was more referring to the fact that Java (and to some extent Flash with Alchemy VM stuff) is already the best solution for cross-platform native sandboxing in the browser. (If Oracle improves on the updates, that is, and I'm sure they will, they've got a lot on the roadmap for Java.) This is a neat idea though!