In reply to JLS: It's certainly been explored by climbers including Mike Tweedly and Tom Charles Edwards. From what I've heard the rock is quite often annoyingly blank and some of it has a sugary texture.
Having said that I'm sure all that is required is someone keen to get up there and document a load of problems, then other will follow and add to what's there. I'd do it if I had time... hint hint!
Last time I was there I spotted some amazing lines but didn't have time to try them or even get up close.
Get on it!!