Walkman section of Sony's booth at IFA this week has an automatic information system that pops up specs on a central display for each model as you pull it away from its base, but there was one unknown model chilling out that popped up nothing more than a "coming soon" message when you yanked it out. What gives, Sony? Why the mystery and suspense? Why are you doing this to us? Well, a little digging through the menu system reveals that it's the NWZ-S754, presumably the follow-on to last year's S745. Given the lack of specs we weren't able to glean much, but both the black and silver units on display were 8GB models; naturally, we'd assume larger capacities are also in the cards when it launches. The display was contrasty enough so that we're thinking it could be OLED, which would make sense -- they do OLED on a number of other Walkmen models already -- and the "Mickey Mouse effect" of the button layout has been diminished a bit. That's good or bad, we suppose, depending on just how hardcore of a Disney fan you are. More details when we have 'em.