Just went through the same thing, after stupidly resetting all data and apps, could not get by the activation screen since no data plan. I am going to guess there are a lot of Pres and Pixis in drawers with this exact screen.
With all your help, was able to run the activation bypass. But lots of bumps on the way.
Steps for those in the same boat:
--but cmd did not recognize java for the bypass tool, so I used a youtube tutorial to include java as an "environment" path in Windows settings (there are a number of tutorials for this, takes about 10 minutes).
--cmd for the bypass tool then worked, phone went to natural state
--installed webos quick installer on the computer
--used that to reinstall preware on the phone
--used preware to get the two patches on #3 of this thread: palm pre plus wifi only - no carrier
This allowed for installs from the App Catalog. The main thing I wanted was streaming apps, Pandora, Slacker and the like. The Pandora app has been commercial free for me, a big plus.