According to a June 23rd Tweet by cyanogen, his infamous ROM v.6 is targeting the Nexus One (which seems to be his favorite since its release), the Verizon Droid, the HTC Dream, Magic, and Desire, as well as the HTC EVO4G by Sprint. He later tweeted the Hero would get some love too.
Cyanogen’s ROMs have been known to incorporate the latest and greatest that is available from the AOSPs, and he does not release them until he is happy with them, so we can rest assured once it is released, we will have a quality ROM. On a later Tweet on the same day, he posts that “the collaboration is insane, or private dev[eloper] channel is buzzing, 3-4 people working together to code and a handful to test” This proves to all of us that once again, he is serious about his ROMs and this one will be a doozy. To keep tabs on the progress, follow him on Twitter @Cyanogen.
UPDATE: We can see the ROM in action here at youtube.