Some great contributions from the Robosapien community:

Robosapien Camera Mod
A step by step guide on installing a miniature wireless camera into the Robosapien - Excellent.

Volume Control
From pictures posted on robosapien.tk - A quick way to control the volume of the bot, something I need since the desire to take new photos usually comes late at night!

Volume Control (robosapien1.com)

A second Robosapien volume control mod, fully illustrated and documented.

Programmable API
The University of Freiburg have grafted a PocketPC to a Robosapien. As a side product, they have written and published a C++ API that allows you to write behaviour programs.