Well, UPS just left, and I've opened the box. It's a very impressive looking total line of microphones. The C3 has a new snazzier hard case, complete with locking latches. The B series looks very similar (shorter, but about the same diameter). At first, the head grille of the B series looked identical to the C series, but on closer examination, there are some differences between the B and C series grille assemblies.
All the mics have the same satin gloss finish, and all of them have a hefty feel. The B1 mic mount is very space age looking, but I'm not sure it'll hold the B1 securely if you want to mount it upside down, but I haven't tried it yet, so I can't really say for sure.
Some errors in the literature (it says the TB-1 is multi-patterned; it isn't), but the overall look and feel of the whole series is one of quality. Both series make a good first impression.
(Okay, I had to try and see if the B1 mic would slip out of the mount when it was upside down. It was a tight fit into the mount, but it could still slide slightly - except, when you turn the mic to where the diaphragm is facing the from, there is a hefty little metal extrusion at the base of the mic that prevents the mic from coming out of the mic by sliding it. Very clever, and very foolproof. The B1 can't come out of the mount when you position it correctly, period.)
Alan says the new B series uses internal shock mounts on the capsule, so an external shock mount isn't needed. Since the body diameter is identical to the C series, the standard C shock mounts would also fit the B series. I haven't hooked them up yet to see if the handling noise is eliminated by the new internal system, but I'll try it both ways - with, and without, the C series shock mount.
That's about it for now.