I've seen programs for Windows Mobile devices that allow printing documents via Bluetooth and WiFi. I know that the Bluetooth SDK isn't quite ready yet but what about being able to print via WiFi? Is this something that could happen in the near future? My boss owns a landscaping business. They use a web based application to track everything along with printing invoices and change orders. The web app works fantastic on the G1. The idea is for them to be able to have a bluetooth printer in their truck and print a change order/invoice straight from their phone while they are out on the job.