SPB Mobile Shell, a popular UI option for Windows Mobile, has been updated to version 3.5.4. It looks like it’s mostly an upgrade for bug fixes and optimizations, rather than one with new features. Still, I’m sure many Mobile Shell users will want to upgrade. Check out the change log below and download the new version from SPB Software. Let us know, in the comments, if you notice any other changes!

Changes in v3.5.4:

- Changes in the Internet search widget (Bing by default)

- Fixed a couple of issues around logging into Facebook and Twitter

- Backlight support for new devices

- Other bug fixes and optimizations

(via: SPB Club)