I am trying to open Android samples in Eclipse (with ADT installed). At first, it seems to be a tedious task, trying to import every single project. Then, I found out that ADT already has a shortcut for importing samples. Just go File > New Android Project. In the "New Adroid Project" dialog, select the Build Target, then check "Create project from existing sample". Now, in the dropdown below select the project you want to import. It is much simpler than I thought.
Well, of course, it would be even better, if the sample projects have Eclipse project in them. That will save me even more time.