Can\'t get any result in feeds. feedXML has the correct data.
XDocument feedXML = XDocument.Load(@\"http://search.twitter.com/search.atom?q=twitter\");
var feed
You need to specify the namespace:
// This is the default namespace within the feed, as specified
// xmlns="..."
XNamespace ns = "http://www.w3.org/2005/Atom";
var feeds = from entry in feedXML.Descendants(ns + "entry")
...
Namespace handling is beautifully easy in LINQ to XML compared with everything other XML API I've ever used :)