Late last week, Brint Kriebel, a device maintainer with CyanogenMod, made a preliminary build of CM10 available for Galaxy Nexus phones. Kriebel indicates he has been using the build for a couple weeks now as his daily driver on his Verizon Galaxy Nexus and most hardware functions work properly. It is an AOSP build, so Google apps are not included. Being a preliminary build and not an actual release, bugs are expected and should not be reported. If you are interested in trying out CM10 on your Galaxy Nexus, hit the source link for the file. Just be sure to make your backup before you undertake the install.