Ah.. The fun of reverse engineering
Well, I should be on news.com either today or monday for helping reverse engineer the new XM Direct and Commander protocol and making an SDK for .NET written in C#. The team and company I work for is selling a kit for 45.00 for home users and car users that use computers in there car. It basically helps replace the XM PCR that was discontinued a few weeks back after the Timetraxx and RIAA drama. We will be working with TimeTraxx to make a new version supporting the XM Direct and Commander.
Fun stuff!