Ok, here's something you'll want to refer to daily... the current status of the jQuery 1.4 "TODO list", or as I like to call it, "Report 37". Usually when people on the jQuery dev lists ask "When will jQuery 1.4 be ready?" they are met with a resigned (resigned not resiged) answer: "When it's ready". But we don't have to take that kind of glib-ness anymore...
Now we can go and consult good ol' Report 37 any time we need an ETA on 1.4. The method is simple: when all the red and white stripes turn light blue - then jQuery's ready to go! Of course, looking at all those lines takes up precious time and brain space - so I've compacted the data into a single image, so you can see how things are going at a glance.
To make the pretty pictures, I grab the report once a day, and dump it on my server. Then your browser goes all jQuery on it - loading it in and extracting relevant colour information. Then the super awesome Raphael SVG library makes some pixels, and we all have a cup of tea.