The Inq has published some pricing for the new Intel processors:

65nm dual-core Yonah's, 667MHz FSB

T2300 1.66GHz $241

T2400 1.83GHz $294

T2500 2.0GHz $423

T2600 2.16GHz $637

L2300 1.5GHz $284

L2400 1.66GHz $315

65nm single-core

T1300 $209

Ultra low voltage Pentium M

733 $273

The Yonah's are also available bundled with Centrino chipsets.