All right, another T-Mobile press release is confirming (more or less) that the T-Mobile MDA Vario II is the HTC Hermes: "For fast and easy input of URLs and E-Mails, the MDA Vario II offers a full keyboard as well as a 'trackwheel' for a comfortable navigation. Also it offers a large color-screen which can be also used in landscape. The color-screen also can be used as a view-finder for the 2.1 megapixel camera. As a PDA it also supports many organizer functions" (please note, this is my translation of the original German T-Mobile press release, unfortunately T-Mobile isn't offering this press release in English yet).
So no question, according this specifications the MDA Vario II is the earlier surfaced HTC Hermes and I'm sure T-Mobile will present it on its stand at CeBIT.
T-Mobile Germany hasn't announced a detailed release date other than "early summer" nor a price yet.
Cheers ~ Arne