Jon Udell switches to Bloglines for his aggregator and writes: “Like Gmail, Bloglines is the kind of Web application that surprises you with what it can do, and makes you crave more. Some argue that to satisfy that craving, you’ll need to abandon the browser and switch to RIA (rich Internet application) technology — Flash, Java, Avalon (someday), whatever. Others are concluding that perhaps the 80/20 solution that the browser is today can become a 90/10 or 95/5 solution tomorrow with some incremental changes…It seems pretty clear to me. Web applications such as Gmail and Bloglines are already hard to beat. With a touch of alchemy they just might become unstoppable.”