This won’t mean as much to those of you that don’t use Tumblr.
But if you do use Tumblr v4 beta then you are going to absolutely love this.
Tumblr now searches your Dashboard. Just click the “all posts” link as if you were going to do a Tumblr 3.0 style filter and then you will see the search box.
It would also be killer if it was on the new Tumblr home page.