The Alphasmart group on Yahoogroups has a database of 23 applications that take advantage of Dana's widescreen. Aside from DTG6, there's:
1. Adobe Acrobat Reader for Palm OS ver. 3.5
2. Bonsai from Natara Software
3. Gizmo5 (instant messaging)
6. UniCMD (a great file manager)
And others ...