Apple finally has released the iOS4.0.1 for public use. It features a new and improved signal bar calculator, which enables accurate display of signal strength. There is absolutely no doubt that a lot of users will get iOS4.0.1 updated, knowingly or unknowingly.

Even if you have your iPod touch 2G or iPhone 3G updated to iOS4.0.1 there is nothing to worry about. You can still use Redsn0w beta 5 to jailbreak iOS4.0.1 and by using ultrasn0w 0.93 you can unlock it too. As we have been doing previously, we once more are back with a simple guide to jailbreak iOS4.0.1 on iPod touch 2G and iPhone 3G on Windows and Mac OS X. Here is the simple guide for the same

The first step is to download the iTunes 9.3. Then Download iOS4.0 for iPod Touch 2G and iPhone. After that download iOS4.0.1 for iPod Touch 2G and iPhone 3G. The last download is Redsn0w0.9.5 Beta5. The next step is to jailbreak iOS4.0.1 on iPod Touch 2G and iPhone 3G.

• Update iPod Touch 2G/ iPhone 3G 2G to iOS4.0.1 with the help of iTunes software update.
• Start Redsn0w0.9.5 Beta5 and press on browse to select the firmware iOS 4.0 for iPhone 3G.
• Press the Next button and Redsn0w0.9.5Beta 5  
• Click on “Install Cydia” and click Next  
• Power off your iPod Touch 2G /iPhone 3G and then connect it to computer and press the next button
• Put the iPhone on DFU mode
• Now wait until the jailbreak is complete

The WWDC 2010 will see Apple release the iPhone OS 4.0, the third significant upgrade for iPhone and iPod Touch phones. The OS 4.0 features many new functions and the most significant of them all is that of multitasking, which will not be available in iPod Touch phones (1G/2G and 3G) and iPhone 3G. As far as iPhone 3G is concerned it is all but dead and OS 4.0 wouldn’t support it, not officially at least.

When OS 3.0 was released it wasn’t free of cost and if Apple does the same with OS 4.0 then this update wouldn’t be free of cost for iPod touch phone users. To update your iPod Touch you will have to shell out either $9.95 or $4.95 depending on your upgrade. It is totally unfair and is widely believed that this upgrade should have been for free. So, if you want this update and yet don’t want to pay for it, here are the ways to do it.

In order to upgrade iPod Touch phones to 4.0 OS for absolutely no cost you simply need to download latest iTune and install them. Then you will have to download iPhone OS 4.0 from the site, which is free to download. Connect the iPod Touch to a PC/Mac and start iTunes and there are a few more steps that you need to follow and you can enjoy OS 4.0 for free.

Well, I guess this comes as a relief for many who wanted this update and yet not wish to pay for it!

The iPhone and the iPod touch are extremely smart and powerful devices but have some very basic shortcomings that could be very frustrating. Like a keyboard cannot be attached to it or you can’t directly print to Bluetooth or other USB connected printing devices.

However, there are ways of printing through the iPhone without connecting it to any other device. Though some of the iPhones can print photos only, it is acceptable as these machines are more suitable for taking screen shots. To print, you just need to press a button and the printing starts immediately. The same trick can be applied in taking prints of other things as well.

In spite of limitations, the print applications of iPhone and the iPod can be quite useful and fairly interesting too. There are three types of print applications-

Direct printing: This application enables you to print to an inkjet printer without the involvement of any computer. You just need to have a Wi-Fi connection and it is very simple to use, printing one photo in one time.

Shared printing: Shared printing, as the name suggests helps you print using a shared Wi-Fi network. You just need to connect the Mac and the iPhone to a Wi-Fi network and you are ready to print.

Helper Apps: In this application you need to install an additional helper to the Mac or a PC and you can print through the printer connected to these devices.

So, we can conclude the print applications in iPhones are pretty good, considering the complexities involved.