well sort of....
Puma is the codename for 10.1 and Moonlight is the codename for 9.2. Many rumor sites are of the agreeing opinion that Puma will not be ready for MWNY, and like you said, they are bundling Puma and Moonlight together (because of Moonlight's drastically increased Classic Compatibility.) Puma is supposed to be a much snappier OS than Cheetah was. I'm looking forward to it, and would like to see it at MWNY, but I'm not holding my breath.
~ Adam
p.s. Wacom's deal with Apple is nothing special. I read the statement by the Wacom guy. It could be anything from a new TabletMac to improved Cocoa drivers for a Wacom Tablet. Who knows?