On Twitter if you type '?' it gives you a popup list of all the keyboard shortcuts which is useful if like me you forget these things. Could this be implemented into DDG? Perhaps a few other goodies hints could be included too.

Is it possible/helpful to display somewhere on the page what region I am set to. I forget sometimes to change back after clearing cookies etc. I can usually tell by the results but not always and worry that the previous searches could have been better then if I had remembered. Top of the sidebar would be good.