Well, I agree on the performance (speed) side, VM out, subset In. but feel abandoned on the memory footprint side.
Objects are just huge! Asm.js promises something more like structs, I think. Now making THAT available to JS programmers would be a great help.
I really don't want to go back to C just for faster JS. Lets use the knowledge of the last year to put some of the asm.js goodness into JS hands. LLJS is likely not the answer from a recent jlongster post. Rather than a new language, simply parts of asm.js would be better received by the JS community.
-- Owen