• USB ports seem to be defective in many MacBookPro11,x check your kernel console.

• Ram is welded on the motherboard so you to buy immediately the option that best fit your need.
• SSD is welded on a non standard PCI-Ex card and probably it will be hard to replace in the future.
• It have two USB3.0 ports, two Thunderbolts2 ports, one Full-HDMI, SD/MMC card reader and hybrid audio port. NO more Kensington lock, power led and battery indicator
• Audio connector is an hybrid microphone+headphone, I tried a Samsung headset and both microphone and earpieces works fine in Linux and MacOS X, other OSs not tested.

Currently I'm maintaining the official page on Debian wiki, please refer to that page.

Obviously it works fine!

I made a bootable usb key using bootcamp and official Microsoft ISO (15/01/2013), anyway I was stucked with the installer because keyboard and touchpad (even external) are not recognized (maybe a problem with USB3.0 driver)

It works fine using bootcamp and official ISO from Microsoft.