Well, CAB really. Not taxi. We gave up on trying to debug the 3rd party control in C++. It's something deep down in the control, and we ran out of time. It'll keep though, that project is coming back around in a couple of months, and that bug will be reprioritized.
Now I'm doing a POC (proof of concept) on the ability of CAB (composite UI application block) to meet our particular needs. So far, it's been a lot of fun, very cool. I had heard from many developers that it is too complicated. I find that it seems very complicated, but not overly so. It seems to be just as complicated as it needs to be. We'll see how my initial assessment pans out though.
I'll try to post whatever I can find time for.