Project main goal was to determine functionality of Android OS on Raspberry Pi 2 and Ubuntu Touch OS on Samsung Galaxy S2.
Android OS worked fine on Raspberry Pi 2 and there is a potential to develop even applications for embedded systems (there are still few problems like lack of GPU driver).
Ubuntu Touch OS is totally different OS than Ubuntu for PC. It is orientated on smartphones, and support for Samsung Galaxy S2 expired before 2 years. Some new smartphones like Nexus 4, Nexus 7, Nexus 10, Meizu MX4, BQ Aquaris E4.5 and BQ Aquaric E5 have support even today. There are a lots of problems with OS (some hardware keys not working, bugged UI, WiFi, mobile network also not working), so the best thing would be to test Ubuntu Touch on smartphones that are supported.
Here is a video of Ubuntu Touch installation process: