EXAMPLE:
support.madd74.com == madd74.com/support/
chat.madd74.com == madd74.com/chat/
media.madd74.com == madd74.com/media/
To prevent errors from subdomain access, when the move is complete, it should end up point back to madd74.com, meaning if you attempt suppor., chat., etc, that it will simply direct you to madd74.com
The floaty menu bar thing (haha, that kills me) is going to be able to get people to where they want to go with in the first place, so the "ease of use" of subdomains will not be required. About the only advantage that the subdomains ever really had was with browers history. Typing "chat." in your web address would show "chat.madd74.com" (assuming that you turn that service on with your browser, and that your browers supports it in the first place, something all modern ones do).
I imagine this change is not going to affect anyone, and I am most likely chatting way more than I have to, however, being a web admin, I feel compelled to take something simple and explain it 5 times more than need be

I currently do not have a scheduled date for the conversion. I will post when it is done, as it should be quick.