I know right now that image file 'size' is limited to 500k but at the moment having a 640 pixel length limit doesn't even come close. Should we size our images to 640 pixels maximum length or go for the 500k and assume that someday we'll be able to view them larger? I assume (I know that's dangerous) that there will be user galleries and that we will be able to view images at 'full' size in the near future?