Ask HN: would you still encode your videos using webm?

Recently Mozilla announced that Firefox nightly is supporting h264 when you're using Win7 (Win8 too?). I really like webm and an open video format for the web would have been great, but I feel that this is just the last move that will kill webm in favour of h264.

The only webm-only browsers will be opera, which has a very low usage compared to other browsers, and the non-windows versions of firefox (at least for now).

Would you still encode your videos in both webm and h264 if you'd have to run a streaming website? Or would you go just with h264 and using a flash fallback for those not supporting it?