Uploading from pastboard

Uploading screen shots is a great idea but wouldn't it be easier for the users to be able to upload instantly after screen-shoting instead of needing to save the sshots and then uploading them. For example, if I surf the net on some else's computer and want to share or tag some sshots on your site and share them. I would have to save them on his computer, upload and delete them.
If I could directly upload or paste the sshots from the pastboard it would be faster and easier for everyone. More then that, if the computer I use doesn't have photoshop or any photo editing program I couldn't even save it in the supported formats. I could alse be simpler from those who have no idea how to edit images.

Just an idea of course ...