Hi, I just pushed command `org-info-find-node' bound to "C-c C-x I" by default for Org files and agenda buffers.
`org-info-find-node' opens the Info section that deals with the Org context at point. For the cases I could not find a suitable Info section `org-info-find-node' opens the top level Info section of Org. This function emerged from a similar feature in the gnus package. Ciao, -- Marco