It is very difficult to see a polyline or polygon feature as you are collecting the feature. Even if you are zoomed in tight while collecting the polyline or polygon, it is very difficult to view the very thin line that is displayed. The color can be changed in options, but the size cannot. After the feature is saved, it is a very easily viewed thicker line. The features in progress are even more difficult to view on high res screens such as on a GeoExplorer 2008.