No idea when WordPress 2.6 will be released (soon?) but here’s something from the feature list that caught my eye:
Tumble Your Posts
The one thing I have loved about Tumblr is the simplicity and ease of access. I simply select a link or a image and tumble it to my micro blog at Tumblr without having to go through a series of steps to actually post my content.
WordPress 2.6 is taking a new approach and adds in bookmarklets that will allow you to quickly post links and image ala Tumblr. (think “Press This”)