This is a pretty ugly one. After someone posted that they added Senses (Low Light Vision) with Check Required 11 as part of a Linked Power in a Device and gotten 10 extra pp for the other Linked Power, I checked it out. Turns out, you can add directly to the character such a power and gain 10 extra pp. Isn't there supposed to be code making every power cost at least 1 pp?
He also rediscovered the nested Alternate Forms bug, this time involving nested Devices, and commented on how Noticeable can be added to base non-subtle powers.