I deal with print servers daily, they are a truely a F@$*-ing headache. They should just work. LOL.
I've had the joy of going "Office Space" on some of our broken printers to pay them back for the frustrations they given me.
It feels good, or rather really great, to take a sledge hammer to something that has given you hours of headaches, purely to destroy it!!!
If MS proceed to use the standard driver model of 2d printers, then as mark.burhop mentioned there would end up being some opensource reprap driver that would get modded to match the feature sets of whatever mobo your printer is running. In our case, it'd be for the sanguilolo (shut up, i know that I probably spelled that wrong & i dont care).
Its an interesting step taken by MS, I wonder when we'll see their Micro-doodle-bot as the newest 3D printer. *joking* I hope i never see a MS 3D printer, it would be harder to work then a basic stock Solidoodle [by a newb]. I wish they just finish returning my start menu in Win8 and get rid of those beyond redonkulous & useless tiles from my desktop and just leave them for tablets. But I could rant all day about such matters, so i'll stop now. :-)
SD2 w/ mods: Rumba controller, ATX PSU, SD pro case, glass bed, with more to come...