A Synergy-compatible server for iOS devices.
Conflux is a virtual KVM server that allows you to remotely control multiple Synergy-enabled computers through your iPhone, by transforming it into a fully functional touchpad-and-keyboard.
See http://github.com/dpereira/conflux for details and setup instructions for your iPhone.
See http://synergy-project.org for details on setting up your computers with Synergy.