One cool feature – it autodetects when you go there with a mobile devices, and reformats the page appropriately. Looks perfect on my Windows Mobile phone.
You can also do specialized news queries, such as news in your area (topix.net/YOURZIPCODE).
To get the “mobile” formatted view in your desktop browser, just add ?lw=1 anywhere in the URL, like this.
Steve Rubel outlines the nitty gritty details on how to make a super-customized page on Topix. Which you can then enjoy in your desktop browser, or as a “river of news” on your mobile device.
Dave, you should definitely check this out.
EDIT: Have to play with this some more to see if it fits the true definition of a River of News – newest posts shown first.