iPhotoDraw is a very simple program with one main feature: it allows users to draw and add annotation to their digital photographs which include bubble boxes or balloons and other types of annotation. It is a freeware photo editing application that's well-designed and portable.
Here are some screenshots to illustrate the features and user interface of this application:
Photo Pos Pro
Praat
Able Fax Tif View
Artweaver Free
DeepSkyStacker