Get the Group Works deck on your iPad
There is an awesome app for iPad called Infinite Canvas, used to make interactive hypermedia for the iPad. Daniel Lindenberger has put together an Infinite Canvas version of the deck which was showcased as part of the Infinite Canvas Preview at SXSW 2012.
This Canvas provides a simple, beautiful and intuitive reference for the Group Pattern Language embodied in Group Works, allowing you to browse by alphabetical index, by category, or by related card.
You can go to the Infinite Canvas site to download a free Infinite Canvas reader, and then select "Group Works" from the showcased content.