YouTube user razorianFly discovered a really weird iOS 4 bug. He noticed that some of his springboard icons are disappearing when scrolling through his springboard pages. He made a video where he shows the iOS 4 bug “movie above”. It’s a rare bug, but did you noticed the same problems on your iOS 4?

iDemo is an iPhone application that enables you to create real-time demonstrations of iPhone apps and games, just like Steve Jobs did during the keynote. You simple connect your iPhone with your Mac via Wi-Fi and a USB cable, and you will be able to see you iPhone in real time on your desktop. iDemo is just submitted to the App Store and is waiting for approval. You need iOS4 to make it work. We will let you know when iDemo has been approved. » iDemo For iOS 4 Submitted To The App Store

Facebook for iPhone, on of the most popular iPhone apps has just been updated to version 1.4. This update includes improvements for iOS4. Version 1.4 has been Updated for iOS 4: Fast App Switching along with high resolution icons. Korean and Russian localizations. And Other minor bug fixes.

They didn’t tell what bugs they fixed, so if you notice some improvement let us know.

iBooks was already available for the iPad but has just been updated to version 1.1 which makes it possible to also install iBooks on the iPhone and iPod Touch in combination with iOS 4. Apple also added a new feature to iBooks that makes it possible to open and read PDF files within the Mail application. A full list of new features and requirements can be found after the break. » iBooks 1.1 Released For The iPhone And iPod Touch

iOS4 is now available in iTunes for iPhone and iPod Touch users. With this new update you get multitasking, folders, wallpapers, mail improvements, iBook and over 100 more new features. All iPhone and iPod Touch users can install the new iOS except the first gen iPhone and first gen iPod Touch users. Connect your device to iTunes “you need iTunes 9.2” and click the “Checking for Update” button.

A developer by the Youtube name Treibercc has uploaded a movie showing something that looks like a build in flashlight in OS 4.0. We all know the flashlight applications, but maybe those applications are not necessary anymore because when you hit the power button 3 times after each other, the screen turns bright white for a view seconds. What do you think is this a bug or feature. » FlashLight In OS 4.0, Feature or Bug?

Today a new version of Redsn0w has been released, Redsn0w 0.9.5b4. This new version of Redsn0w is created for developers that use iPhone OS 4.0 Beta 4. Beta 5 is probably coming very soon, so if you would like to try this jailbreak for Beta 4 before Beta 5 is released, you better be quick. You can download Redsn0w for Beta 4 here.