So the initial release will be runnable on Windows XP, and on both 64-bit and 32-bit versions of Windows. Probably after that the best thing is to drop XP support, and just use a 32-bit binary of the most recent version of nw.js for all Windows versions.
doesn't it make more sense to have a 64 bit versions for windows, and not dropping XP support? One of the most amazing thing about Pd is that it can run anywhere, I'm sure someone will be bummed out for not being able to install in on XP
cheers