OK, maybe this isn't possible, but it'd save an awful lot of bandwidth from me personally if it was added
Here's the use case (user is always logged in):
I click on the "New Posts" link and it shows me the latest posts since my last check. Now I want to read one of them.
The request I have is to provide some widget, similar to the one that says "Go to last post" but instead it says "View first unread".
It's a real pain to first click the thread, then I can select "View First Unread". Especially if the first page of a thread has lots of pictures and requires a lot of time (and bandwidth) for the browser to mark-up and present before I can click the link.