Every time I try to e-mail a document created in Apple's Pages using Gmail, it gets stuck in this this endless "Loading" loop. It seems that Gmail can't send Pages documents, and perhaps even other documents created in iWork. And I thought Google and Apple were all buddy-buddy lately. Anyways, they should really do something about this. So far the only work-around I've found is to change the extension before e-mailing it, and then restoring the extension when you download the file.