It's not gonna benefit N900 directly as specific device. But whole web and the way how video content can be distribute. I'm really glad that Flash going to bake this codec in. In addition to dynamic streaming they working on, that will be very powerful stuff. And at least will benefit all devices.
We are working at the moment on supporting VP8 across all our OMAP products and we will contact you directly with a schedule for your products based on OMAP3.