Key features are:
- Native C code. No dependencies on .NET or any other library.
- Tiny (just 25Kb).
- Full screen photos with gestures and hot-spots.
- Slide-show mode.
- Nice transitions (you can see them all in the slide show mode).

Tested this on GPS (CE 4.2) and PDA (Hermes) and it works quite well.

Gestures:
- Slide left to go to next photo in list (You can also use the wheel down for this).
- Slide right to go to previous photo list (You can also use the wheel up for this).
- Slide up to go to last photo in list.
- Slide down to go to first photo in list.

Hot Spots:
- Top left to open a specific folder. Folder navigation is done by sliding up and down and select the to select.
- Bottom left to open a specific photo. Again, you can slide up or down or go to a specific folder.
- Bottom Right to start/stop slide show mode. Slideshow is 3 seconds. You can change the config file to specify different interval.
- Top right to exit.
- Right edge of screen to go to next photo in list.
- Left edge of screen to go to previous photo list (You can also use the wheel up for this).
- Bottom edge of screen to go to last photo in list.
- Top edge of screen to go to first photo in list.

Configuration:
CEPhotoViewer saves its configuration in CEPhotoViewer.cfg in the same folder as the exe. This file contains the last open folder and the slide show timeout.

Startup:
On startup CEPhotoViewer looks for any JPG/BMP/GIF images in the program's folder. Else it prompts you to select a folder. Once selected the config file is created and subsequent runs, it will automatically pickup that folder.

Update Description:
v0.68 (26-03-2008):
- Integrated JPEG processing. Much faster in loading big images (although the size tripled from 20Kb to 60Kb).
- Added edge hot-spots to navigate in addition to slide gestures.

v0.67 (25-03-2008):
- First public release.