Statistics

[Nygu]

Calculate:

• The average time between creating and finishing a task
• The amount of tasks finished before the deadline in relation to passed deadlines
• The average priority
• There are probably more potential statistics

We could use this to make users more competitive by allowing them to share their stats with their friends. We could also use stats from friends to compare personal stats to an average. Of course people could cheat a little, but it's just for fun and if you cheat then who exactly are you fooling? :)