combining echo area and modeline

[Q]

Hello everyone,

Maximize the editing area can be very desirable on netbooks and
phones. In most of the times the echo area is blank, and the
information on the modeline is glanced only once in a while. I am
wondering if the modeline info can be displayed in the echo area
whenever there is no message? Or if a hook can be added for
detecting echo area changes?

There is a stackexchange question on this
http://emacs.stackexchange.com/questions/7563/make-use-of-an-empty-echo-area-to-display-information

Thank you for your consideration!
Q