Palm Pre users on the Bell and Sprint networks will soon find a new update to webOS being pushed out to them. Weighing in at 126MB, the update to webOS 1.3.1 does not include any new applications but there are still plenty of useful changes and bug fixes.
Among the updates are the integration of Yahoo! information (contacts, calendar events, and messaging) with Palm Synergy, improved email formatting in forwarded messages, several new shortcuts for common actions such as marking messages as unread, and the ability to forward and copy individual text and IM messages. A number of system and security issues are also addressed. Full release notes for Sprint and Bell will give you all the specific details.
Anyone picking up the new Palm Pixi from Sprint tomorrow on will also get the update.