@raviainani you need to search xda (and google for other android development boards) and get a good version of Froyo running.

Don't waste your time with ubuntu, at its current incarnation, it wont float your boat.

Feel free to come back after 6 months to ask the same question (not being rude), to give time for MeeGo to develop and have enough resources to support the Tegra2/Folio 100 architecture.