Yes, Android 4.1.2 has arrived on the Nexus S.
While the net is full about articles on the Nexus 7 update, the Galaxy Nexus and the Nexus S gets this minor update, too The changes are minor and mainly bugs were fixed. Google itself does not offer a proper changelog... why?
Fortunately the guys at Android Police made a great job on collecting changes in this update.
Changes in short:
- one finger expanding notifications
- launcher rotates on Nexus 7
- WPA wireless setup bug fix
- small changes in phone dialer section
- bigger sms no longer transformed to mms
- search now configurable. Device/app search included
- location settings revised. On/Off switch for everything.
The detailed look on the changes can be found at androidpolice.com.