What's Up with the Nexus Calculator app?

The current calculator app looks like this:

Screenshot_2012-07-18-20-53-54_medium

via 4.bp.blogspot.com

But the new clock app looks like this:

Screenshot_2012-11-28-14-24-13_medium

via dl.dropbox.com

It makes the calculator look like outdated junk.

Shouldn't google be consistent and do this in Android 4.2.2?

Calculatorimage_medium

via dl.dropbox.com