Hi. I am the author of MiniMagAsm.
Actually MiniMagAsm is just an proof-of-concept, that can be used for small sites.
I know that the performance can be improved by using some optimization tricks, but I simply don't need (for now) it to be faster. :)
Also, it is true, that x86 hardware can run much heavier web engines, but think about that the same hardware can run more lightweight engines as MiniMagAsm.
Anyway, the future of this project is probably towards using FastCGI or SCGI interfaces and maybe the use of some lightweight database engine - like SQLite.
Ah, BTW, http://asm32.hopto.org is actually my home desktop computer. :) Recently, the whole project has been moved to a commercial hosting: http://asm32.info