ACR Release candidate 5.4 has added support for CF, CFV, CFH, H2D, H3D, H3D-II backs including all the multishot versions. Finally!
5.4 DNG converter is also available for download.
Lightroom is sure to follow.
For me, this means a totally integrated workflow when using the H3D-II cameras with other ACR supported DSLRs and the M8. No more conversions necessary in Phocus when doing weddings.
Like with C1, Phocus will now be used on an as needed basis ... especially for DAC corrections and color.
Testing to follow.