[Darkimmortal]

Moving Javascript to before </body> +2 (the difference from simply doing that is huge - you don't get those little freezes during page loads)

Google Closure Compiler +1

Compressed HTML I agree that's probably not the best thing for the server CPU :P
I'll make that disabled by default and include a warning in the next version.

Also I could make the YUI files being included in the Javascript cache an optional thing. But still surely almost all the Javascript needed on the majority of pages being compressed into a single file under 70 KB (with GZip) that can be easily cached deserves a +1? :P
Otherwise you end up with a load of separate Javascript files and like you said, it's usually 2 requests at a time (not that it makes much difference without loading them async).