Download "Simple Human Workflow Quickstart Sample Code"
Here’s a quickstart for WF that just went up on MS downloads.
Download description:
“The Simple Human Workflow Quickstart contains sample code that demonstrates how to build activities that interact with people so that a developer can easily build workflow enabled applications which involve simple approvals and escalation. In this sample we demonstrate how to make use of Active Directory or an alternative directory for organizational hierarchy lookups. We also demonstrate activities that interact with Microsoft Live Communication Server for user presence detection and also sending and receiving of instant messages.