Please, Please, provide a way to delete an attachment; Many people get
large attachments (photos, etc)-- and after a while they begin to add
up and take up huge amounts of disk space. The only way to get rid of 
them is delete the entire message. It would be very nice to allow users
the option to remove an attachment. I think it would be great if the 
message body were updated to indicate that the attachment once existed,
and has been deleted, along with some info about the attachment, like
mime type, size, etc.