Mind and the gap

A while ago I posted about Jerry Fodor's review of Andy Clark's book about extended mind theory (EMT) In a subsequent letter to the LRB, Clark responds to Fodor's "amusing, insightful, but fatally flawed review" of his book. Clark begins his rebuttal of Fodor's arguments reassuringly with "Let's start small"  and proceeds one step at a time, very readable and persuasive. To me the extended mind theory raises interesting questions about whether the value of the mind is purely instrumental. Will it be OK to extend one's mind with the Berlitz Instant Italian implant before visiting Venice, or will that be frowned upon?