Again from Engadget:

"The word is that Palm's existing hardware roadmap is basically untouched at this point by this acquisition, but the good news on the HP end of things is that the company sees webOS as a "prized asset," and they intend to "scale it across multiple connected devices." That sounds like tablets to us, and HP didn't beat back that assumption. On the Palm hardware end, Jon is very fond of saying "scale," referring to the money and manufacturing resources at HP's disposal, but he also says that he sees Palm working hand in hand with HP on devices. "