Having Blackberry Playbook troubles with webaccess on the new GroupWise 2012? Here's a quick fix.
Edit your webacc.cfg file, scroll down to the templates section near the bottom and change: Templates.UserAgent.14.id=*Playbook*
Note the capitalization of the 'B' in PlayBook.
Save the file and reload your web and tomcat servers. Voila, you now have the iPad templates working as they should on the Playbook