I would like to create an android widget with a scrollable textview.
The solutions given to this question
Making TextView Scrollable in Android
cannot be applied because it is a widget:
android.view.InflateException: Binary XML file line #23: Error inflating class ScrollView
It looks like this is not possible.
More on this can be found here: http://code.google.com/p/android/issues/detail?id=9580
So, probably it is possible to do make appwidgets scrollable in the HTC sense environment but not for normal android environments.
A way around this is to add buttons that go up and down in a list.