'Where is the Future' exhibition (Science Museum)

That actually wasn't the title but it was something like that.  An interactive 'design the future' show with exhibits designed to let you design transport, food, homes, power generation, recycling etc.  Very clever and engaging.  Beautifully designed interactive operations.  And all of it 'controlled' by a smart card (RFID thing) that remembered all of your settings and designs as you went round...  End operation was to place the 'environment (food, dwelling, leisure etc) 'zone' in the sommunity.  All of this happening live in a very SimCity sort of way.  Hard to describe but mesmerising for all concerned.

And all the machines worked.  And it wasn't busy.  A good ad for computer / digital technology.