This is a very good overview - thank you for that.
I would like to add that there are quite good topo maps available for hiking: its the IGN Institut Géographique National 1 : 25.000 topo map series, available for France and Corse. You can buy them at bookshops. To cover the whole island you need about 18 different maps - well - but they are very exact with all hiking trails, roads, paths and so on. 7 maps cover the main hiking regions round Monte Cinto / Monte Rotondo and the west coast.
I used them during my 2007 stay and was very satisfied.
If there is time I will add two more mountains and some nice pictures from my trips.
Merci! Actually I was aware of the maps - I had seen one in a shop in Porto (?). But when I wrote the page I didn't know where to look for them and never found the information. Later I forgot. I'll make the addition...