Anyone have a BT keyboard that's backlit they recommend? As a side note, it will be used both with the Surface 3 and my MBP. So far I've seen the Logitech line has either the K810 (Window k/b) and K811 (Mac k/b) and reading various reviews on Amazon mention both support Win8.1 and Mac OSX. I can go either way but leaning towards the K810 as I need it for my main Surface system for work. Recently there's a new BT keyboard, the K480 which have keys that show both Apple and Windows! The only downside is no backlit keys which I do need and use for the home office. http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias=aps&field-keywords=B00MUTWLW4 I'm curious if anyone has used any of these and what their thoughts are, especially if they use it for both Win8.1 and Mac. Cheers!