But the pictures are not shown, while I know this could be possible.
with a picture you can see much faster if that topic interest you or not, so I really hope pictures will be added in the mouse over poopup.
EDIT: I know see only the last reply is added in the popup. Maybe it would be nicer to have:
the last post in the topic (last reply)
the first post in the topic (mostly containig release info + pictures)
I know this will make the popup much larger, maybe the first post in the popup should be set in a really small font. But the pictures used in a release will make the popup very nice.