The supported codecs are listed, although it is slightly different from the TelePresence System Codec (like the C60) likely because the two products are positioned differently.
From this page we can tell the following:
http://www.cisco.com/en/US/prod/collateral/voicesw/ps6789/ps6836/ps12430/data_sheet_c78-704194.html
The iPad client supported codecs include standard H.264 for video, and G.711a, G.711mu, and G.722.1 for audio.
The iPad client resolution can receive up to 448p quality and transmit up to 360p for a high-quality video experience.