Facebook For iPhone
The Facebook app for the iPhone now supports iOS 4. Facebook App is one of the best app for the iOS. Download it for free from here (iTunes link)
Changelog:
Updated for iOS 4: Fast App Switching, high-resolution icons
Korean and Russian localizations
Minor bug fixes
Twitter For iPhone
It can now send and receive tweets in the background which also includes photos and videos. It also has been adjusted to look great on the Retina Display to give you the best experience. So go ahead and download the App from here and tweet this.
Mashable App
So many things happen on the internet. You just can’t keep up with them all. But some people just work to ensure you dont miss any of those news. Mashable is the perfect app. Go download it right now
Evernote
Evernote turns the iPhone, iPod Touch and iPad into an extension of your brain, helping you remember anything and everything that happens in your life. Now go download it before you forget it. Click Here
Now let us know your favorite iOS4 Apps in the comment section.