Remember The Milk has released an update to its iPhone and iPod touch app for access its cloud-based task management service. Remember The Milk 1.4 adds support for iOS 4, allowing users of multitasking-capable devices to take advantage of Fast App Switching and background syncing with the web service. The update also adds Retina Display support for the iPhone 4, accessibility and VoiceOver support and various bug fixes and enhancements. Remember…