Nah, the OMAP3440 is 800MHz, while the OMAP3430 is 600MHz (I just redid the OMAP wiki page, which has some details). Basically, this thing is going to be a power hog like no other. The consumption jump between the OMAP3430 and the OMAP3440 is . . . non-trivial (I had some numbers at some point, but I can't seem to dredge the up).

It'd be cool if the OMAP36x were on a schedule that might work for the RX-51. 45nm would offer some nice improvements.

As far as "usability" discussion, well, none of us can do more than talk for the time being, because no matter what anybody says (unless they work for the big N), nobody here really knows (so stop pretending like you do ).

Nokia has stated their intention to improve on this point a lot for Fremantle (remember, this is step 4) and it will be a major departure from Diablo, but this is as much as we can say for sure for now. There's an intention, and there's change, whether it'll pan out will have to wait for a real release (or the beta SDK).