Trevor3 I checked out The Cabot Project, it is ongoing and quite interesting:
http://www.bristol.ac.uk/history/research/cabot.html
I had heard of some of these things before, like the idea that Italians set up the first Christian church in North America in Carbonear in 1498. I wonder if they were able to prove that? Also that Columbus and Cabot were not really the first modern Europeans to come to North America.