I doubt they will do pre order, but I could be wrong.
However Microsoft has another Launch Event on Oct.25/12.
The day before Windows 8 will go on sale, and I will bet all info for RT will be made clear.
That on Oct 26/12 RT will sell at retail stores and the Microsoft Store....with 32 stores set to open that day.
New Stores set to Open
I'll be in line (the night before)!!!!! A friend of mine has also said he wants to go see what will launch.