Ah, bollocks. Not sure if this will affect the calender synch I currently use between my Nexus 7 and Blackberry…
http://support.google.com/a/bin/answer.py?hl=en-uk&hlrm=en-uk&hlrm=en&answer=2716936
Starting January 30, 2013, users, other than paid Google Apps users, won’t be able to set up new devices using Google Sync and should see our sync site for instructions. You can also consult with your device carrier or manufacturer for how they recommend to sync with Gmail, Google Calendar, and Contacts. Google Apps for Business, Education, and Government customers can continue to set up new devices with Google Sync after this date.