Desktop Twitter Client Project

Does DTCP have keyboard shortcuts?

Absolutely, though only a few at this moment.

Shortcut Action
⌘ + N Bring up the new tweet window.
⌘ + Enter Post from current new tweet window.
Esc, H, or Left-Arrow Dismiss current new tweet window, or go back to previous view.
L, or Right-Arrow Show the thread or author profile of currently focused tweet.
J, or Down-Arrow Move down by one tweet.
K, or Up-Arrow Move up by one tweet.
Space Page down.
Shift + Space Page up.
Where is Feature X?

If it is an essential feature (such as those already in, then most likely it is already somewhere on my todo list to be implemented.