Word on the e-streets is Mirror's Edge is VERY short. Some people are saying they can beat it in less than 7 hours....
There's supposedly some very cool 'online' stuff that extend the game - like someone maps out a specfic run and you can see their footprints and you try to match it identically - but faster.
Probably some DLC and a sequel or such - that way they can try and maximizes the moneys 
there is a time trial mode to see if you can get the fastest time on a map. you have to beat the other player or your ghost from a previous run.
Did you upload any levels yet? I finally ran through all those damn tutorials to use the different items in the build-a-level and started on my own. I wanna see what you or your kids have done tho.
I have not gone through all the tutorials yet, my kids have not put anything together quite yet, still a lot of "almost" maps, nothing that takes full advantage of everything you can do with this game. maybe by this weekend they may have something.
