I stopped upgrading at 2.1.1 and I think Ill stay there. Id rather not confuse my F100 with touchscreen issues. Sometimes...upgrading just does not make sense anymore (Im looking at you GPH and MS VISTA).
Edit: Haha...I just noticed my (rather old) signature down there. How ironic...
I will say that the first time I saw the design I did not like it. It looked weird (different) and I thought it was trying to be too many things at once.
After thinking about it for a bit and seeing these new renders...I think the device looks awesome! I cant wait to get one and start playing...
It looks like you need the original files. The readme will have more information.
If you have data files that work with OpenTTD then they will work with OpenTTD on the GP2X.
Watch out for SDHC compatibility for these new cards. The regular GPH firmware can not use SDHC.
Check out Open2X or there is a hack that was working last time I checked.