And to think Google has hired most of silicon valley's engineers and mathematicians... not to mention it has more than enough, ahem, computing power for this. Freeform equations in the google search box is a feature I've been wanting for a long time. Can't believe it was MSN first to the party.

yeah, this kinda suprised me too since msn's unit conversion isnt as complete as googles (i.e. [yoctoseconds in a millennium])