Silverlight on PC ... of course. on Mac ... sure. on Linux ... whatever.
but when do we get Silverlight on Windows Mobile, XBox 360, Extenders v2, Media Center, MediaRoom?
WindowsMobile needs it to compete with the iPhone. the 360, Extenders v2, MCE, and MediaRoom need it to offer developers a common platform to develop a single 10 foot interface to run on all devices.