I've obviously not been on for a while. The USB robotic arm project has essentially stalled, mostly because I have nothing "useful" to do with the arm. I think without combining it with some clever machine vision stuff its not going to be much use other than as a pure gizmo/toy. It was however fun trying, but I'm too busy with other projects right now to focus on this. If anyone does have any problems etc with the code I've written I am happy to see if I can help though.
Hopefully there will be some more interesting Python projects in the future which will let me resuscitate the blog!