Palm Developer Program now open
developer.palm.com
developer.palm.com
To make an app for the Palm you should use HTML, CSS and Javascript. But then, I ask, why not use these same technologies and tweak a little your app into a generic Web application, available also for iPhones, Androids and Blackberries? Why would I want to limit myself only to Palms?
"We have been working closely with a handful of partners as we refine the PDK's design and initial implementation, but we'll be expanding soon. A public beta release of the PDK is scheduled to be available to all webOS developers in March, followed by an official release in the first half of 2010."