Yesterday, Megatotoro and I helped a colleague who wanted to dual boot her recently bought desktop PC. She wanted us to install Mageia 2 and we were confident because it is a process that we have done several times already.
However, when we hit the key to get into the BIOS... Surprise! We were greeted by UEFI instead.
We thought the dual-boot enterprise was doomed. We are not computer techies, to begin. In addition, we had read all the problems that UEFI will give to people who want to try Linux, which was pretty discouraging. Nevertheless, Megatotoro persisted and found the option to disable the secure boot. Once this was done, the installation of Mageia 2 was easy.
I hope OEMs keep the option to disable secure boot.