If you want to try out Qt Everywhere on your Efika MX you need to build it.
It requires a lot of dependencis so I sugest that you do it ON your Efika MX. You will need some extra storage like a USB disk or a NFS mount.
Download the latest Qt Everywhere sources from , http://qt.nokia.com/ Unpack it and configure it with: -embedded --prefix==yourstorage This will not give you GL functionality but the software screen driver is very fast. Build it with : make ;make install
To run something:
Add the -qws flag to the first app you intend to run on the framebuffer