Lots of good ideas.
I would like to see some examples of Disadvantages as well - particularly those related to a given special effect. Common (or not so common) Susceptabilities, Vulnerabilities, and Physical Limitations would seem appropriate to an Until Report.
It might also be useful to have a offical UN statistics report on the frequency of a given power/special effect in the world. Something useful for determining whether a given effect is commone, uncommon, or very common. Of course, assigning these vaules should vary from campaign to campaign, but it would be a useful starting point for beginners.