Is xtra uploading totally unmetered?
My (quite possibly incorrect) understanding, is that even uploading a file results in a small amount of downloading . Something to do with acnknowledgement packets or error checking.
If I am correct, what is the percentage of the download compared to the upload?
Just thinking about uploading my entire photo collection to flickr. But, it is big, and I'm not sure about whether this will count towards some of my download cap.

