No Threading in WPF?

I was reading thru Adam Nathan's book on WPF and he mentioned that there is no threading support (STA model) in WPF Windows/Forms when one wants to communicate with the GUI controls.

As I understand it, this means I can't have multiple threads running that can update WPF GUI controls? Yes or No? If Yes, is this limitation going to carry thru to final VS 2008 with WPF?

Thanks, Rob.

[421 byte] By [RobAinscough] at [2008-1-10]