Will WPF XBAP applications be able to be searched by search engines?

Sure - standalone XAML files shouldnt be a problem since they are declaritive and can be parsed by a search engine. But xbaps send compiled stuff to the client.. great for perf .. but will make the content unsearchable.

And what about URLs? How will a user recall a link on a site to send to a friend? e.g. www.acme.com/products/1234? will there be a way to recall & share URLs with WPF?