I've taken the plunge and started a Tumblr blog that can be found at therealarchidose.tumblr.com (archidose was already taken). It's only been a few days, so I've yet to really define how I'll be using the platform. Right now it's a way to follow the numerous architecture, design, and other interesting blogs that use Tumblr—and to occasionally reblog—and create short content, such as the screenshot below. What it won't be is a syndication of A Daily Dose of Architecture; I'd rather create something new that takes advantage of the microblogging platform.
Check it out and feel free to follow.