To answer some of the posts I have seen in this thread: Carbon is some of the people from liquid. That rom for bionic is similar in function has alot of the same goodies and few extras. Both are solid roms. Don't know why there are now two sets of devs don't care, they both are solid and rock.
There is a setting under advanced settings (on carbon) that allows you to use external storage for apps and media... soooo now your 32GB card you inserted is seen as SDCARD0 and your internal ram is SDCARD1... no more out of space from app installs or email issues and apps 2 sd is less relevant. Using goo manager you can get and update the nightlies from both liquid and carbon. Support is decent for both also. On the hive is where I first found carbon.
The nightlies (all but one) were flashable right over your first install, only ever had to wipe once with a nightly and that was because the framework base changed. Tweaks are really cool~