As frivolous as this seems, I think it's actually a really good idea. Google do this in a bunch of places. However unlike the MS flight simulator they are disco

As frivolous as this seems, I think it's actually a really good idea. Google do this in a bunch of places. However unlike the MS flight simulator they are discoverable with use. The reason why this is important is it both delights the customer as well as giving them an incentive to share that delight. Since it's a "secret" feature they gain social kudos for sharing it with their peers. This of course encourages to people to use Google, both through recommendation and for the chance of more delight.