What about tablets?
>The market for non-Windows based laptops is much, much smaller (basically OS X).
ARM laptops are way different. For starters, they wont run any programs that run on other laptops.
Q4 2011 tablet numbers: 11.1m iPad/6m Android (including Kindle Fire and Nook)
.NET programs will run fine. Win32 programs can be recompiles with a WinARM target (the Win32 APIs still exist in ARM Windows)
As I noted in my reply, he's mostly wrong about that too.