All you iPhone/iPod touch/iPad users running on iOS4, Beware! iOS4 has just been hit with a massive security breach.

Flickr has released an update to its iPhone application with many new features like support for various iOS 4 features like Multitasking, Fast App switching, Twitter integration, support for HD Video Uploads and more.

Apple for sure are quick with their stuff. There were rumors that Apple might release a quick software update for iPhone 4 correcting the signal bar issue but we sure didn’t hope it would this quick.

Apple is finally showing some concern for all the iPhone 4 users and is holding a special press conference at 10AM Pacific Time in California tomorrow.

A member of the iPhone dev team @planetbeing today announced on Twitter that he has successfully unlocked iPhone 4.

Nimbuzz has released a new update to its iPhone IM client, “Nimbuzz for iPhone” so as to make it iOS4 compatible.

Picposterous, the official iPhone application of Posterous has been updated to support iOS4. This new version now features background uploading and updated graphics for the iPhone 4 to suit its Retina Display.

When Android 2.2 was launched at Google I/O, Google had boldly claimed that Android 2.2 “Froyo” will have the fastest mobile browser in the world. However, you couldn’t test the claims back then, since Android 2.2 wasn’t available publicly.

Foursquare has just released an update to their iPhone application so that it is iOS4 compatible.

Facebook has finally released their iOS4 compatible iPhone application.This new version, v3.1.4 now supports Fast App Switching and high resolution icons. Apart from that, it also brings minor bugfixes and support for Korean and Russian Localization.