I've tried to install for first time Lotus Notes 8.5.3 on Ubuntu 12.10 32bit , in a fresh installation over a laptop and the experience was great than i had expected. This is the deb i've installed Lotus Notes Sametime Activity CAE Feed Reader FP2 All with Ubuntu Software Center At the first run ...

There are few steps required to have Lotus Notes 8.5.3 worked on Ubuntu 11.10 , 32BIT enviroment with PAE for system with more of 4GB RAM

This presentation will guide you through the steps to create your own demo installation of an IBM Client for Smart Work based on Ubuntu.