Toradex just released the version 4.0beta1 of the Colibri PXA Windows CE 5 and CE 6 image and BSP.
This version contains:
- A critical bootloader bugfix for Colibri PXA310 modules.
- Performance improvements for rotated screens.
- New features for bootloader and especially the bootloader kit.
- Bugfixes for serial driver, FlashDisk driver, Ethernet driver, and other bugfixes.

Windows CE change log:
 http://files.toradex.com/Colibri/WinCE/Images/Betas/PXA_Image_ChangeLog.txt
Bootloader change log:
 http://files.toradex.com/Colibri/WinCE/Images/Betas/PXA_Bootloader_ChangeLog.txt
 
Bootloader and Windows CE binaries:
 http://files.toradex.com/Colibri/WinCE/Images/Betas/PXA_Bootloader&Image_4.0beta1.zip
 
BSP Windows CE 5:
 http://files.toradex.com/Colibri/WinCE/BSP/CE5/Betas/PXA_BSP_CE5_4.0beta1.zip
BSP Windows CE 6:
 http://files.toradex.com/Colibri/WinCE/BSP/CE6/Betas/PXA_BSP_CE6_4.0beta1.zip
 
Workspace files and Bootloader Kit are available on request.