It was removed because it broke App Store rules. Plain & simple. Not because it's wikileaks, but because apps that collect for charities must be free. It should never have slipped through in the first place. Everyone just needs to calm down a little...
http://log.emonk.net/post/2400609317/heres-the-simple-reason-why-an-app-that-costs-two
Good catch, but it will be interesting to see if it's resubmitted and put back up or if Apple continues finding "problems" with it forever.
This is my fear: That Apple wants to take it down to avoid controversy, but is too chicken to actually admit it so they'll keep finding "reasons" why they just can't accept it.
We'll see. I won't jump to any conclusions, but let's just say I wouldn't be surprised if it never returns. (But surprises are nice! It could go either way.)