When I first saw the MediaWIki announcement, my thoughts went over to weather charts. I foresaw a two-level product. The top level woudl be the general code for a weather chart and the lower level would be charts for specific localities. Thus, if I am using a small Wikipedia, I would ensure that the upper termplate was compatible with my language and I could then call up the weather chart with a simple call such as {{weather|la|Rome}} would include the weather chart for Rome in latin (provided of course that someone had generated the Rome chart in the first place).
Was I on the right track here?