Sideline is an Adobe® AIR™ desktop application built with the Yahoo! User Interface Library (YUI). It allows users to create and group custom queries by topics of interest.
Sideline is an open source application released under the BSD license. The first beta release is out and the code is hosted on github. If you experience difficulties with the Flash “Install” badge on this site you can find the manual download here.
Without further delay I’m going to download it and give it a spin, will let you know what I think of it soon.