There has been a lot of talk surrounding the likes of WPF. I am wondering if WPF will become a new standard for graphical interactive user interface design. Is this where
Yes start learning it. It's applicable to Silverlight (though not a 1 to 1 mapping), it's also a very similar model to Abobe Flex's paradigm of MXML So you'll be getting 3 wins for the price of 1.
We're starting to see work come in that calls for it, so there's definitely a good reason to have it on the old utility belt.