Do you mean this app? http://rts.transloc.com/info/mobile#app
Unfortunately, I have not found any mention of it being open-source. And I don't know how to run Android applications on Maemo. And the only transit application on Maemo that comes to mind is QMetro.
And search has also found mass-transit: http://redmine.titilambert.org/projects/stm
I doubt either of them can help you. Good luck, though.