Here are the slides and code samples from my sessions.

Introduction To Windows Workflow

Introduction to Windows Workflow Foundation PPT

WF Introduction Sample.zip

 Extending Windows Workflow Foundation with Custom Activities

Extending Windows Workflow Foundation with Custom Activities PPT

SimpleActivity.zip

Hosting and Communications Options in Workflow

Hosting and Communications Options in Workflow Scenarios PPT

Persistence Services Sample.zip

Tracking Services Sample.zip

Host Communication Sample.zip

Developing Event Driven State Machine Workflows

Developing Event Driven State Machine Workflow PPT

State Machine Sample.zip