Tumblr just released a new version of their service. Many of the changes are back-end and won’t be observable to you, the reader. One addition that I am happy about is the archive. Until now, there was no way to access old posts other than to page through them all. I have also read that they are working on making posts browse-able by tags, and they may be adding a comment feature as well.
On a completely separate subject, I wanted to follow up my last post and congratulate the CMU Tartan Racing team for winning the DARPA Urban Challenge and the $2 million prize.