Well, I think that at least part of the Objectivist epistemology depends on the fact that objective knowledge is gained through an active, reality based process (grasped by a human consciousness). If it were possible to transfer knowledge to someone else, then that would not constitute as an active process for the receiver, which would either invalidate the concept of objectivity or disqualify the “knowledge” in question as objective knowledge, on the grounds that you did not receive it through sensory-perceptual means.
It’s pure science-fiction, but premusably, in the process Hal was describing, the perceptual memory would have to be a part of the “data transfer.” If (and that’s a VERY big if) a scientific discoverry were to be made which enable knowlede-transfers, however, I’m afraid we’d need some new philosophy to go along with it (although it woudl not invalidate the accuracy of Objectivism under the old conext).
EDIT: I also want to add that I’ve read sci-fi which (sort of) talks about this. In Frank Herbert’s Dune Chronicles (mostly the last two books), there are women who can transfer memories and knowledge to one another, although they do it by mystical, unscientific means.