unfriendly climate between Apple and Google, this could be seen as nasty jab, though the devices are still carrier-locked to AT&T, so you're not being given much freedom... and it's certainly not much of a statement. In many parts of Europe (France and Poland, for example) you can pick up the carrier-unattached device (and we mean totally unlocked), but that doesn't appear to be the case here.
Update: We're getting mixed reports on the unlock status of these phones. One store says yes to the unlock, while others are saying they're still AT&T-locked devices being sold off contract. We're digging for more info on this now, so stay tuned.
Update 2: It's looking like those initial reports of unlocked devices are inaccurate. It sounds like these devices are still locked to AT&T -- so you're just looking at an off contract pricing scheme. Which is also totally lame.