Please help me identify this flower.

The plant is about 3 feet high. It has purple trumpet-like blooms.
It was in zone 6 in September 2010.

Photographs at
http://www.facebook.com/album.php?ai...2&l=4c39d81a7d
..

You can click on the photo to see an enlarged picture.

Thank you for all replies!

Ted Shoemaker