"CMIS Spaces" open source clients for Flex+AIR and Flex+Browser are in development These are based on FlexSpaces, but use CMIS apis instead of custom web scripts
I recently got CMIS Spaces working with Flex Mobile 4.5.1 and AIR which can target iOS, Android, and BB PlayBook. Primarily will focus on tablets (iPad, Android tablets) due to larger screens, rather than smartphones.