(Help)Is there any scripts for multi-units displaying?

[emfemsem]

I have an idea for this small script can display multi-units of measurement in a pop-up window. I think it's helpful for designer working with some local people who,for example use the metter unit while the designer feel more comfortable with feet and inches.
Is there any scripts this way?
Thanks.

[Gaieus]

There is a Toggle Units plugin by Matt. I don't exactly know what it does (beside what the name suggests) as I haven't used it yet but I guess it's more convenient than keeping changing the units in the Model info window.

[emfemsem]

Thanks Gaieus, and Matt for the script, it's very useful. But could you do it another way? This script just change the unit from model info... My idea is display those units in another measurement window that you can compare more easily.
Thanks.