First key move was Alonso to Ferrari. Driver shake-up won't move much now until Brawn declare their duo. Rumours are they are waiting for Mercedes to take a (large!) stake, but it's not happened yet. One reason they haven't declared Rosberg as their rumoured driver is maybe because they're waiting for some money? If it doesn't arrive...? I wonder of that's why we haven't heard who the drivers are for all the new teams?
Sorry to see Toyota go, but as their 'green' credentials (Prius et al) go higher, and their success on the F1 track didn't, one could imagine that there was more than money to consider.
Audi? Audis are, according to Top Gear, driven by cocks. Cocks don't usually like F1. Simples...