Well Your Kudos for the Design should go to MS not us, we just made skin with the same design on XBMC.
Nothing is perfect, nothing ever will be perfect. 'Perfection' is not our vision as you put it.
MC360 started out because right before christmas last year I personally wanted a 360 skin for XBMC, looked around and there was nothing even remotely like the real 360. I knew I could create a skin, and with help from the best coders out there it was possible, So I began work on December 29th 2005.
My vision or goal was a 360 dash looking skin, I think we have pretty much done that and we are currently adding bits and bobs that the 360 doesnt have and shaping the dash in our way.
The overall design and application of menus etc, the layout is totally 360 based, but the functions and features will continue to grow beyond the real 360.