SBM has a download site at <url removed> (note: they don't do licensed manga so I can post that, whew). Yes, they've done all of Volume 0 and 3 out of 8 chapters (which seem to be 35 pages) of Volume 1. They started nearly two months back and are releasing a new chapter every week or two, it seems (shortest: 5 days, longest: 14 days). Last one came out four days back.
Hydex, good to hear. I've been stalking the cover art for later volumes at amazon.co.jp and it definitely intrigues me (anyone who wants to do the same should put 978-4757519701 in the search box and you'll be taken to Volume 5).... For instance,