It appears that Windows Mobile 7 may still be on track for the first half (or so) of 2010, according to a post on msftkitchen (formerly UXEvangelist) regarding Office Mobile 2010.

The side you see above points to an RTM (release to manufacturing) date of spring2010 for Windows Mobile 7. ZDNet's Mary Jo Foley chimes in that that's six months or so behind other WM7 dates we've seen, but that Microsoft may be able to speed things up a bit.

And we totally agree with Stephen in that the UI shots we see here likely are just old mockups. We wouldn't expect to see them actually in Windows Mobile 7 in this exact sense, no matter when it's released.