Steve Jobs will kick start Apple’s Worldwide Developers Conference (WWDC) 2010 with a keynote address in few hours. Many rumors have been going around the blogosphere about what new products Apple will announce at the event. Below we have listed our predications for WWDC product announcements. The list goes from most likely to be announced to least likely to by announced.

Fourth Generation iPhone: This is one product everyone agrees Apple will announce today, but there is some debate when the next gen iPhone will actually ship. Most analysts and blogs agree that it would ship before end of June and our source say that they are very sure fourth generation iPhone will ship on either second or third weekend of June.

New Feature on iPhone OS 4: Apple has already previewed iPhone OS 4 in April, but our sources say that Apple will introduce new features today along with the new iPhone hardware. Most of these features will be hardware specific and will not work on iPhone 3G or 3GS.

Safari 5: Yesterday, a leaked document revealed that Apple is preparing to update their Safari web browser. The update will offer 25 percent faster JavaScript rendering, a new reader and support for Microsoft’s Bing search engine.

Magic Slate: Today morning Engadget posted photos of a large multitouch trackpad like accessory that will function like the trackpads on MacBook laptops. Engadget says that the new accessory will be announced today and will bring multitouch gestures along with handwriting recognition to Mac desktops.

Mac mini Update: Supply of Mac mini is running very low indicating that Apple is planning to update the hardware very soon. Rumors are that like MacBook, Mac mini will also continue using Core 2 Duo processor, but with new NVIDIA 320M graphics chip. No other information about the new system is yet available.

New Mac Pro and Displays: Mac Pro haven’t been update since March 2009 and the Cinema Display haven’t seen an updated for more than three years now. It is believed that Apple will use the new six-core Xeon chips in the Mac Pro along with newer graphics. On the display side, the rumors are that Apple will introduce 27-inch and 30-inch LED backlit LCD display with DisplayPort support.

iTunes Update and iTunes Replay: Apple will update the iTunes software to bring support for new fourth generation iPhone and might even add social networking features to the iTunes software. Apple is also planning to add a new service called iTunes Replay that will bring online streaming with technology Apple obtained from Lala’s acquisition. Our sources say that Apple is yet not ready to launch the streaming service because of problems with music labels.

Free MobileMe Service: Many believe that Apple will launch a free ad supported MobileMe service that will bring Android/ Google type free online service integration to iPhone users. Apple has been making changes to MobileMe service, but will Apple introduce a free service or decrease the price of the MobileMe service is a big question.

New Apple TV: It was rumored that Apple will update the Apple TV at WWDC, but out sources say it’s unlikely to happen. They say that Apple might update the Apple TV in September but not now at WWDC.