As for the Celts-as-Basques thing, when one considers the great antiquity of the "tin route" (the trade route out of the central Mediterranean, around/stopping off in Iberia, and ending in Cornwall and vicinity) it seems fairly reasonable.
That said, I think more DNA testing and statistical analysis is required.
Hellow man, Don`t mind my bad English. Firstly I want to make clear that the berber(we call oure self Amazigh) wich means free people are NOT Lybians!! There are berber tribes in Libia butt that is it. I am from berber origin (Atlas Mountains Morocco) now living in Holland. I am trying to search my identity. I red some artikels obout the Picts Living in Scotland that I found very interesting. I also red in another artikel written by a Scottish missionary, he wrote the article "The Berber oure distant cousins". I know that the Scottish people are a proud an heroic race that are not afraid. The berber are known for this also. Is Sean Connary ( I probably spelled it wrong) typically Scot because he lookes very much 100% like my grand father. I am not kidding. There are many berbers in my environment that look a lot like Scots. There are a lot of stories about Picts and Berbers. In the article from the Scot above was mentioned a tale about a Scot sailor that stranded(1850 +/-) at the coast of Morocco(were berber live) The custom of the berber was to kill every body who was strange to them. And what happened the berbers did not killed the scot. He was able to communicate with them. And he learned the berber a lot off crafts. He lived his whole life with these people and is considerd a Saint. The place Mogador was named after him. A missionary who travelled to morocco at that time met the Scot an identified his language as an old Gealic dialect. The missionary later travelled back and wrote the story named "the berber oure distant cousins". The missionary did some research about Scottisch names of the 7 greates tribes like Mac Donald etc. and found out that the biggest berber tribes living in the atlas mountains have almost the same names and also start the name with the distict Mac = M` I remember Mac Doughlas = M`Dougha I probably got the names wrong. The thing is that I lost the article that is very important for me and maybe for scots also. Anyhow does any wone off you knows more about this? Or have a different explenation why my grandfather lookes like oo7 Sean Connery??? Azul(berber for hellow)