Certainly impressive, on a technical level. But without the chimes and gongs, Tyrolean lullabies, and all those charming male and female voices reading the numbers... it just doesn't seem to pack that je ne sais quoi.
It outputs an audio file with a chime, and a (soothing?) male voice reading the numbers, but granted, there's currently only one voice and chime.
I just merged a change that picks a random osx system voice, so now you can hear the numbers read in german, chinese, etc. I guess the next step will be to allow people to set one.