Anybody lucky enough to own an OS2008 internet tablet can be smug and happy knowing that OpenTTD is now available for OS2008.
You need the data files, of course, but that's the same as usual, non-maemo OpenTTD. On the plus side, I actually discovered I really can still edit C++ without breaking it (I tend to spend a reasonably large amount of time using high-level languages, as I value the amount of typing I do).