Looks like there aren't many articles (as of today) on the net describing the new RMB specifically from this standpoint (i.e. data recovery in the case of a dead logic board). Even iFixit in their RMB tear down don't mention this fact (most likely they didn't consider this particular problem then describing the all new SSD). I've lost all my date few times (and finally learned the lesson) and ability to recover data is of great importance to me (I guess not only me). Hence potential buyers of RMB should be aware that there is an inherent danger lurking inside the product and THEY MUST back up their data regularly.
Apple could actually implement some sort of "you MUST backup your data" solution on the RMBs. Or they could face yet another s..t storm (just like the infamous iphone 6 error 53).
And yes, I know several people still using the white polycarbonate MB
But when switching to Windows, things get dicey. It needs bootcamp 5.1.5640, which contains all relevant drivers for Windows 10.
In a way it's better supported under Windows when in OS X
In OS X it's only supported since 10.9 (if I'm not mistaken). And most likely it is impossible to make it work in anything older than that (say SL). On the Windows side one can use Windows 7 (32 bit without Bluetooth) and up using the above Bootcamp drivers. Windows 7 is quit old OS (from MS perspective).
Bootcamp 5 is officially for 64 bit Windows. But BCM94360CD drivers for Windows 7 32 bit can also be installed from this version of bootcamp.
Download and extract Bootcamp
Open the above folder and go to BootCamp > Drivers > Broadcom > unpack/extract (do not run! ) BroadcomWirelessWin7x64.exe
Go to the BroadcomWirelessWin7x64 folder
Do not run DPInst.exe - it's 64 bit exe and it will not run under 32 bit OS
Go to Control Panel > Device Manager > Other devices > Network Adapter and right click it
Select "Update driver software" > click "Brows my computer for driver software" > click "Brows" and find the BroadcomWirelessWin7x64 folder
Click "Next" > Windows should now install the driver (it may give a warning, click "install anyway")
This will only install WiFi. Bluetooth driver is 64 bit only and will not work in 32 bit Windows (AFAIK).
A thing to note. There is a bcmwl6.inf file in the BroadcomWirelessWin7x64 folder and this file contains entries for Windows XP (both 32 bit and 64 bit). Albeit both are referenced to bcmwl5.sys/bcmwl564.sys accordingly which are not present in the install folder.