Like I said in some moment, we'll have soon a new x86 emulator, for those who wish to run any oldies game or application.
The progress is doing is to match the emulator that already has on Android called ax86.
From what I read, It will be support directly from the GPU for graphics modes, which is good for the speed issue (now emulate a 80486 20MHz). One problem is the operating system and their optimizations (we think Raspbian). You also have to think that we only have one CPU, which must be run all the processes of image, sound, input,...
On his blog you can see a screenshot from the game Little Big Adventure.
From here I continue to bet for this emulator, and if you want to donate in any way to the cause, you can do it.
Link: rpix86 blog