Hearing is believing?
It's open to interpretation, but Boeing certainly did not make any firm commitment to a replacement of the B737, in my view. There was, however, a loose commitment to some sort of decision being made late this year. There's probably a replay of the 2010 result conference call on the Boeing website.
Anyway, there is an argument that replacing the B737 (and A320) like-for-like won't be the right answer in terms of the market that will exist in 2030. Very big decisions loom ahead for both Airbus and Boeing. Being able to re-engine the A320 probably gives Airbus the luxury of having more time to decide.