Here is a great site with clips from the movie 'Beautiful Minds' about
artistic savants. Many of the artists featured autistic artistic
savants.
From the Wisconsin Medical Society (Darold Treffert, MD,
Drew Kasel):
"While savant syndrome is extremely rare, as many as one in ten autistic
persons have such remarkable abilities in varying degrees.
Savant skills in autistic persons, rather than being irrelevant and
frivolous, can, by "training the talent" serve as a "conduit toward
normalization" with an increase in language, social and daily living
skills, providing more independence for the savant overall."