The travel distance on the Altar II switches is 1.8mm, so about 0.8mm more than on a MacBook keyboard. Similar to those keyboards, there is very little pre-travel on Altar II keys.
With regard to Windows keys that is a possibility. We shipped our previous keyboard, Altar I, with both Mac and Windows markings on the keys.
It looks like the travel distance on the Microsoft Designer Keyboard is 1.35mm, so not far off.
How long are preorders/is the preorder discount available? I may seriously consider this.