I remember when I was using EE 1.6.x Brandon Kelly introduced Gypsy. It was amazing.
For EE 2 it seems someone was working on something similar called Drifter but support for it was dropped a while ago.
A suggestion was submitted to EllisLab for Channel Groups, but afaIk there hasn't been any news of that.
If I want to implement some sort of metadata specific to entries but not to channels, e.g. Facebook OpenGraph data, is the only solution at present to manually create Channel field groups and fields per channel??
Is there no contemporary Gypsy-like add-on or Channel Groups feature in the works?