I this is my humble solution for my old trusty E300.
I made a plastic frame and mounted a mirror same size as the LCD lens. The mounting is at the mid distance of each side (left and right) of the LCD. So the mirror can swivel both ways for overhead and low level shots.
There's a product that will add a live view swivel monitor to ANY SLR on the market (including FILM SLRs), the Zigview S2:
http://www.zigview.co.uk/S2.htm
It doesn't list Olympus, but the Oly viewfinder has a similar mount to some Nikons...only thing I can't remember which right now (before the ME-1 I was looking for a better eyecup for the E-300, and I was reading about how a certain Nikon eyecup works on the E-300...I've since forgotten that info).