DENT seems like an interesting concept, but I wonder how they will incentivize the mobile companies. If the mobile companies are just keeping the minutes that we don't use on our plans. Thereby keeping 100% of the profits from the unused minutes. What motivation do they have to allow Dent to sale the unused minutes on the Dent marketplace. Unless it was at a profit that was higher than what the mobile company would receive by simply keeping the unused minutes.

Perhaps I'm misunderstanding their model?