The new OBIEE 188.8.131.52.0 is released with lot of bug fixes and few new features and with mostly Zero training to interact on iPhone/iPad. Oracle also released OBI Apps 184.108.40.206 which is the first BI Apps for OBIEE 11g. These are available for download on Oracle Technology Network.
Below I have listed out few resources links.
OBIEE 220.127.116.11.0 and OBI Apps 18.104.22.168 download link:
OBIEE 22.214.171.124.0 documentation link:
OBI Apps 126.96.36.199 documentation link: