The last Windows Mobile 6.5 Build 23041 already added a lot of polish to the mobile operating system, making it more finger-friendly and visually appealing. However, Microsoft just made some more improvements, increasing the build number to 23045. The latest version uses visual pictures in the bottom bar instead of text. It also adds a number of bug fixes and improves on speed and usability.
Here is the rundown from WMPowerUser:
-Text-based buttons on the bottom bar are now replaced by icon-based buttons which makes the experience look good, and more finger friendly than ever before. (see the screenshot below for the comparison between Build 23045 and Build 23409)
-Almost all issues with fonts and pictures in Titanium have been fixed.
-Improved memory management.
-Faster and more responsive.
-Numerous other bug fixes.
(via: Redmond Pie)