Thanks Jeffro, I hope that's not a concession to Tumblr or anyone else. WordPress have done well to stay nice and easy as a first blog or site, while becoming more, and we ought to keep the bar low for beginning with WP.

While we're thinking big challenges for WordPress, we ought also, IMO to focus on BuddyPress and/or distributed social possibilities (what of SocialRiver? et al.) for WP. There must be half a billion people using or registered in one or another WP site. If we can flip the switch on distributed social in WP we can rule social, or rather we can let everyone rule their own social (own their data, identity, control their privacy, etc.). Looking at you, Zuck.