yep, expired. 1) bought an unlocked/hugely overclockable Barton 2500+ last week from a local store and 2) the AN35N ultra from newegg for about $47 shipped. combined total was about $147, and it shows up and runs as a XP 3200+. (FSB 200mhz, mult is 11 i think).
So, the AN35N ultra is a good choice. As long as the unlocked 2500+ Bartons are still in the pipeline ( a pipe that is soon to run out as post-week 38 Bartons appear to be locked), it is a much better choice than the 2400+ due to overclockability.
p.s. as far as I know, no one has figured out a user-method of unlocking the new 2500+ Bartons. If you have a local supplier and can get a look at the manufacture codes, now is the time to nab a pre-week39 Barton before they are gone. Most online retailers have already exhausted their supply.