Very nice idea, with a slick widget appearance. The actual feed management interface could use a bit of work, though. After I add a Twitter account/RSS feeds, is there a button to get out of the "new digest" wizard and back to the list of them? Also, could you explain what exactly a "digest" is somewhere in that new digest form? I didn't really know what I was creating. Finally, some of that sample code is a bit iffy. I believe the PHP code will cause the page load to hang while it's waiting to download the page from your server, and if your server is down it will hang for a long time. Very cool idea, just apply a little polish.