If you still haven't updated your device, do so. The new build is 14 MB in size and can be installed by hitting the System Update button in your phone’s preferences. Here's the full change log:
Version: webOS 1.4.5
Release date: 30 August 2010
Feature changes to existing applications
Palm Pixi and Palm Pixi Plus phones can now run 3D games and other apps developed with the webOS PDK. Check App Catalog for titles that are compatible with your phone.
This release includes minor fixes and enhancements to support the public release of the webOS PDK.
If a user enters text in a field on certain websites, the screen focus now remains on the text being entered.
This release fixes a rare problem so that podcasts now download correctly.
This release addresses several security issues with the Palm webOS software.