To go with the very spiffy K10D body, Pentax is rolling out two new zoom lenses:
smc PENTAX-DA 16-50mm F2.8ED AL [IF] SDM
smc PENTAX-DA* 50-135mm F2.8ED [IF] SDM
Like the K10, they're weather sealed. Note, however, they're not remotely light, as the big apertures would indicate. However, they may be the quality equivalents of Pentax's estimable Limited prime lenses, many of which are excellent backpacking choices.
Oh yeah, they've got some teeny new cameras too, including a waterproof W30.
PMA is next month so expect a flood of new photo gear. Fingers crossed for a Stateside E-400 with IS.