Mapnificent is a nifty idea: letting you know how far you can travel on public transport from a given location within a set timeframe. But because only a handful of Australian cities have integrated public transport data on Google Maps, Mapnificent is restricted to just Adelaide and Perth right now.
If you are in either of those fine cities, then Mapnificent offers an interesting window on planning day trips, or even just choosing somewhere for everyone to go for lunch away from the office. I'd love to see it rolled out in more cities, and what that really means is that I'd love state governments to get off their data-hogging high horses and put some effort into integrating timetable data into Google Maps. I've said it before, and I'll keep saying it until it happens.