Many, including Netanyahu and the mainstream media, are interpreting Obama's reference to the '67 borders as an endorsement of Palestinian maximalism. I think the reference to "land swaps" could mean something like what was offered at Camp David. Obama has a history of thinking he is being uncontroversial and then having to backtrack. Remember the remark about an "undivided Jerusalem"? I think Obama should be given a chance to clarify what he meant.
Update: Israel Matzav disagrees.