CNet is reporting that Netflix has opened up its "Watch Instantly" feature to Mac users (here is Netflix's blog entry). They accomplished this by using Microsoft's Silverlight technology on both platforms, abandoning the Windows Media Player solution that had been employed in the first, Windows-only, version. Silverlight's DRM capabilities meet Netflix's needs, apparently. Netflix warns that this is beta software. Mac users can opt in here, then watch instantly with Safari or Firefox 2+, with the Silverlight plugin in place. Movie selection is somewhat limited.