Aiming to rev up momentum behind its yet-to-be-released Pre smartphone, Palm has offered a few more details about the handset and the software running on it, webOS. Palm will open up its Mojo software development kit for webOS to more developers later this year. The Pre smartphone will also tap cloud computing capabilities. In addition, an emulator from third-party developer MotionApps will be available to let users run old Palm apps on the Pre.