It Has Begun!
In last night's session, the Telepath took the plunge and made his deal with the Devil (so to speak). The character now has two Divine ranks, with the Dominance and Concealment portfolios (obviously those will have to be made- how's Chapter 3 coming along

), the idea being that it'll be sort of a "secret master" entity. I'm planning for the official title within the church to be "The Hidden Master, Equinox, Saint of Dominance." If that title sounds strange, you need to know that the character's name is Equinox, and the church is for a LE god of Power (so Dominance would be quite a virtuous quality within the faith).
That said, with those divine ranks came two Divine abilities, and the player chose Intellectual Spirit and Anyfeat. Now, Intellectual Spirit is pretty obvious and set in place as far as game effects are concerned, but we ran into an interesting conundrum with Anyfeat almost instantly.
Because the character is a Psion, and thus gets the Extra Power feat so powers not currently on the character's list of known powers can be learned, Anyfeat means that Equinox now has effectively instant access to any power of 8th-level or lower on any psionic list. This is not the problem- it's a superb (if slightly unexpected) use of the ability IMO, and illustrates its true utility and desirability quite well.
The problem is this: what happens if Equinox uses Anyfeat to access a power not normally on its known powers list, say for example
Metamorphosis, and uses it- and then, while said power is still in effect,
changes the Anyfeat so that the power is no longer known (whether that means the feat just changed to access a different power, or to a different sort of feat entirely)? Does the effect go away, and if so, why? If not, this gives any character with Anyfeat access to every possible buff in the book, given enough time to access them and throw them out there; does this make Anyfeat too good for a Divine ability?
Lest you think this is a problem with the psionics rules, I'll point out that a Sorcerer or Bard could easily do the same thing with the Spell Knowledge feat. It works just as well for them too- it may not be quite as good as always knowing all spells, but it does mean that you can know any spell you want to know- and use it- as long as you have a few rounds to prepare.