Here are some problems I found using the widget:

Photos taken by the N900 in portrait show in landscape in the widget. They show correctly in images so it must be an EXIF field.

It is too easy to miss the arrow buttons and trigger the loading of the pic viewer. Maybe a boundary bigger than the visible buttons?

It would be better if the picture viewer avoided the wallpaper images somehow. It would be even better if you could read the image list from Tracker and use that to generate picture lists (all images on the device, images tagged 'slideshow', etc)

Thanks, fiferboy. As always, your stuff is great.