Wikileaks, though technically not a wiki, provides an easy means to disseminate information that some find it desirable to share against the wishes of those who find it desirable to keep secret. Aside from the morality of the leaking itself, such a service provides a look into the activities of...
On the iPad version, you don't actually have to pull back as far as you think (otherwise your thumb goes off the edge).
Use the catapult unless you're a masochist.
Upgrade your reload time unless you're a masochist.