It looks like it's going to be an interesting addition to the online aggregator space.
On first glance I like their idea of a News Stream. All your feed results can get put into one long stream. Frassle can do this but I haven't tried it yet, and
Dave Winer wrote about it.
I did come across a user interface issue that I emailed them about.
When adding your own source the text prompts:
"Add your own source
If you know the URL for the source file, enter it here:"
I did that, but what you really wanted was an RSS feed URL. So I got an error from you asking for an XML source.
I know what I'm doing and was confused. Think about people who don't know what RSS or XML means...
So the prompt might be better labeled as:
"Add your own source
If you know the RSS (XML) URL for the source file, enter it here:"
The problem is that RSS is written in XML and the buttons on people's pages can say either of those or something else all together.
