> UIs have never been parallel. WPF can have multi-threaded UIs, but it's usually not worth the headache. Although I think every control is bound to the Dispat

> UIs have never been parallel. WPF can have multi-threaded UIs, but it's usually not worth the headache. Although I think every control is bound to the Dispatcher of its containing window, so you can only have one thread per window instead of dividing it finer (not that it matters much, the usual rules of doing nothing computation-intensive on the UI thread still apply).