The antenna on the iPhone 4 has been tested by Anandtech. The tests found that the antenna on the new iPhone 4 is better than the 3GS, but is finicky.
Facebook has finally updated its official app for iOS4. The update only adds compatibility for the new OS here, but offers localized versions for Koreans and Russians.
Mozilla has announced that it has submitted Firefox Home to the App Store for approval. Firefox Home is an app that syncs Firefox desktop data and lets you open bookmarks and pages in Safari on the iPhone