We are not sure if this is a bug or a feature but if you try to push the power/sleep button for three times in a row on the lockscreen, the iPhone goes right into flashlight mode showing bright white screen. I have also tested this and it appears to be working on iPhone OS 4 Beta 4.

The iPhone OS 4 Beta 3 has been rolled out to developers and interestingly it resolves lots of bugs over any of the previous Beta releases of OS 4. Apart from the usual bug fixes and API improvements, following features are noticeably new in this release.

If you want to have the look and feel of iPhone OS 4 right now, without having to update your iPhone and iPod touch to OS 4, then “iPhone OS 4” theme for Winterboard is the way to go. This theme includes wallpapers for both home screen and the lock screen, along with the new icon for “Calculator” app. This is how it looks like.

Those who might’ve tried the beta version of iPhone OS 4 might’ve noticed that Safari’s search doesn’t have the Google branded button anymore. The button for the search simply reads “Search” now instead of “Google”, even though the search engine (Google) remains the same.

Big news for iPhone 3G and iPod touch 2G users! After learning about iPhone OS 4 jailbreak news earlier today, some iPhone devs/hackers have now apparently managed to enable multitasking on the older iPhone 3G and iPod touch 2G, both of which were limited by Apple due to lower amount of RAM on these devices. This is what a recent tweet from an iPhone dev said.

In case you missed all the action which happened earlier today, here is a complete video from the iPhone OS 4 event which also includes Steve Jobs keynote. The said video is available in QuickTime and MPEG-4 format and can be seen from the link given below.

Apple announced the highly anticipated update to iPhone OS, dubbed as iPhone OS 4 today at an event held at their headquarters in Cupertino. Version 4 brings more than 100 new features and over 1500 new APIs for both users and developers respectively. Multitasking, which was one of the most requested feature has also been added.

Apple has just released the first developers preview version of iPhone OS 4 Beta, along with SDK for iPhone and iPod touch. Only members enrolled in the iPhone Developer Standard or Enterprise Program can access these bits of iPhone OS 4 and SDK by signing into Apple Developer Connection.

Apple today has unveiled the new iPhone OS 4 firmware in a preview event, held at their 1-Infinite loop campus in Cupertino. This announcement added lots of new features for both users and developers. Here is a sneak peak at what the new version of OS is going to offer.

Apple is all set to unveil iPhone OS 4.0 tomorrow, at an event which will be held at their One Infinite Loop Campus in Cupertino. There has been lots of talk lately about all the different features that might become a part of this major OS release. Here is a compilation of what to expect from iPhone OS 4.0.

We all knew that iPhone OS 4.0 firmware was going to be unveiled this year, but not as soon as this. Well folks, it is now official and confirmed, they are going to announce it on April 8th, right after the big bang launch of the iPad.

Folks over at BGR have got hold of exclusive list of features, which they have been told are confirmed to be a part of the upcoming iPhone 4.0 Firmware. The next iPhone firmware is rumored to be very close, if not same as the OS on the rumored Apple Tablet. It is said to include multitouch gestures OS wide, multitasting (finally yay!), lots of UI changes including a refreshed homescreen! and more syncing options for the native contacts and calendar apps.