Android developer console has a new statistic feature.
In that we can see the current Android's version distribution:
Android 2.2 - 57.8%
Android 2.1 - 29.0%
Android 1.6 - 6.8%
Android 1.5 - 4.9%
Android 2.3.3 - 0.6%
Gingerbread already available for 5 month (from when it was first introduced), and still has a tiny share.
Will the other makers start to install it on their devices some day or it will never happen due the enormous Gingerbread ugliness?