Just updated.... hope the Wi-Fi works better for me too. OpenGL still does not work for my astronomy software.... will install Intel's driver. Sad because the OpenGL is a known issue to MS and it has been know since the first firmware came about.
I installed the generic intel drivers the other day. it gave me graphics control panel. but this new firmware update, updated the hd4000 drivers also. Microsoft does their own custom version of intel drivers. now my graphics control panel doesn't let me mess with as many options as before. plus my display resolution size doesn't show in there anymore. I could always roll back or reinstall the drivers but I haven't noticed anything negative with new update.
like Mitch and others said, this new update meshes very well with surface pro. the touch pad on my type cover is a lot more sensitive and responsive.
just a f.y.i., you can go to waocom and download their drivers to make the pen even better, more accurate, etc.. with waocom driver installed I now have another pen control panel of sorts. where you can get really in depth on how you want to customize pen. like setting the botton to do other things. this driver also brings pressure reception to the surface pro. where it can determine pressure applied. the regular drivers Microsoft put out didn't allow this yet. new waocom drivers improved pen substantially.
when you get the intel drivers for HD4000, look for the zip file version. the exe version throws up an error when installing and says device doesn't meet minimum requirements. if you get the zip version, you can unpack it , then run autoinstall part in it and itll install just fine that way.
btw, im really loving this device. lol
for those looking for or missing the start button on desktop, google "ViStart". its from lee soft. itll allow you to add a start button to taskbar that works just like older windows. very customizable also. you can boot straight into desktop mode if you want from app. but I found out you don't even need app if you want to boot straight into desktop bypassing metro. theres a way to do it within the tablet itself.