I came across mention of these in my looking around about brakes. Are they really hydraulic brakes for drop bars? Do they exist? This sounds like a cool idea for cross (to me at least)!

The mention I found of them suggested they were basically HS33 calipers with special levers for drop bars, but wasn't much more descriptive than that. I couldn't find anything on the Magura company site, which suggests they might either be discontinued or a figment of someone's imagination...