In reply to marko8182:
Wild camping on the Orme itself would need to be pretty stealthy; dog walkers are out pretty early, as are the wardens, and the goats can be quite inquisitive!.
I believe one of the plans the new owners (National Trust) of the farm on the summit have is to develop it as a campsite along with wildlife area, but this is very early stages.
At present there are few, if any, commercial campsites within Llandudno, with the nearest to Great Orme probably being
http://dinarthhall.co.uk/ some 6km away