Twitter for iPhone 3.0.1 has been released and now supports multitasking, retina display and other features of iOS4. So, now you can switch away from twitter for iPhone, play around with other apps and then switch back to Twitter for iPhone. This is the sort of multitasking support that Twitter app for iPhone has brought to iOS 4.

If you have Twitter for iPhone installed, update it to latest version. If you don’t have it already, search app store for “Twitter for iPhone” and install the app.

via Twitoaster