This is interesting - My suggestion after going over the video/reading is a suggestion to you, think about duel/pvp add-ons into the application - Maybe some minigames you can challenge random people around you.
Besides it - great idea - will wait to see how the idea will grow

Hi,
Some games are already planned.
Maybe we'll think about "competition" but until now it is more like cooperation !
Thank you for your advices.
And do not forget to try the App ! You'll earn real ZYM's and may become an ambassador (even MORE ZYM's)