I get that they're showing Android 2.3 (which is still the most popular), or at least I assume it isn't earlier than 2.3, but this is definitely fixed on Android 4.0 and above which would've been nice to mention. Screenshot: https://docs.google.com/file/d/0B0NZ9_re99x1VzlKVldwNGRhMWc/...
In general it doesn't appear to be fixed: http://caniuse.com/#feat=input-datetime
And I verified it just now in an Android 4.1 emulator going to this url to test: http://www.w3schools.com/html/tryit.asp?filename=tryhtml5_in...