Greets from San Diego, and just a quick "Thanks" chaps

I'll be back in just over a week (so get it all done before then ) so I can have a look at the pipeline CPU overhead then.

Regarding PythonQT, there's a nearly-finished plugin - ExternalDBusPlugin, which (when finished) would allow external apps (including those written in Python) to act as plugins. This might avoid the requirement to get PythonQT working (at least immediately) and will also be useful for some apps that don't suit the plugin model (e.g. map apps comes to mind immediately, or youtube players, etc).