Pickuptrucks.com posted a quick impression of the new Ford F150 XLT 4x4 (not the FX4 4x4, Ford's off-road version). The review notes the improvement in ride and handling that the new truck's frame provides, and finds that the XLT is plenty capable off the pavement, with good articulation of the suspension.
http://news.pickuptrucks.com/2009/02/road-test-review-2009-ford-f150-xlt-4x4.html
http://news.pickuptrucks.com/2009/02/road-test-review-2009-ford-f150-xlt-4x4.html