train times mash up

was using the excellent accessible train timetable at traintimes.org just re-stumbled across the live trains map produced by mathew somerville who is linked to the lovely people at mysociety - they're responsible for faxyourmp, pledgebank and lots of other fancy mashup style community stuff.
just reminded me how much clever stuff can be done with the new era of mashup web2.0 stuff
and made me think it'd be good to get something like a showcase element in the city information network meeting I'm planning for March