This is a summary of testing Haiku on a HP G72-b43WM 64-bit notebook for fun:
Haiku cannot run the GUI Network settings pane because it crashes (uh-oh!) but it did recognize the screen (much more than I can say for Solaris, and Linux distros that were made for 32-bit.) Plus, the notebookās keyboard and mouse worked right out of the box! I might add booting was a little slower by about a minute, but everything worked!
So, if you were to ask me how Haiku did on 64-bit as an i386 version as a nightly, it did really well! I donāt really think Haiku needs an architecture port!
Yes, as X64 is a superset of X86 and can work in X86 compatibility mode if the OS is 32 Bit as Haiku is, so no surprise that works
X64 has some vantages indeed on X86 (> 4 Gb of RAM addressable without tricks, more registers, 128 Bits integersā¦) so port will be necessary, but not so urgently in my opinion⦠more interesting to see Haiku run on PowerPC (which only real interesting system is PS3) or ARM CPU.