I just noticed Josh Topolsky asking on twitter what the best twitter client for WebOS is right now. Given his comments on the Engadet podcast, I can't really see him itching to go back to the Pre right now unless something was up.
I think Palm might be giving him an early review unit to either get his feedback on the Pre 2 / WebOS 2.0.
Is this something which could happen? He signs a NDA or has a good reputation for keeping a lid on this type of stuff? Does Palm want/need a review on Engadget as soon as they announce the Pre 2?