Just a quick heads up for anyone out there who uses LastPass--
The new MtGox login page doesn't seem to work for me (at least on Chrome) if you have the LastPass extension installed and enabled (even if you're not logged in to LastPass). The only way I can log in is by disabling the extension completely.
Hope this helps someone...
-Chris
I managed to login using LastPass+Chrome by removing the 'onsubmit' javascript thingy using 'Inspect Element'. (: