The iOS 3.0 was intended for the Apple iPhone Internet and multimedia enabled smartphone, but also for the iPod Touch portable media player. It can also be used on the Apple iPad, which is a tablet computer, but it would have no sense, as the iPad already has a more advanced version of the same operating system.
The most obvious characteristic that these devices have in common is the fact that their control is built around the multi-touch sensitive liquid crystal display. Probably the most awaited feature in the iOS 3.0, is the Cut, Copy and Paste feature. The iPhone users expected this feature from the very first iPhone, but Apple could only deliver it two years later, when the iPhone 3GS and the iOS 3.0 were released, one short time after the other.
What this feature basically lets you do, is go anywhere within the phone, on a text page, on the Internet, and even in some applications, and copy whatever part of material you desire, then go to another place and paste it. For example, if you saw a quote worth saving on the Internet, you select the area by sliding your finger, then double tap the screen. When doing so, the screen provides you with the Copy, Cut and Paste bubble, which holds these three options. After selecting Copy or Cut, you can go somewhere in your phone, within a note,for example and Paste the respective piece of text. It is something that can come quite in handy. The iOS 3.0 also comes with a new Spotlight, which lets you search the entire data contained by your phone, and if an application is written to support the new Spotlight, the searching process can come up with the data contained in that application as well.
What most of you would probably find wrong about the iPhone version up until the iOS 3.0 is that it doesn't support landscape mode for typing in different applications. While some of you may be indifferent to that, because you type in portrait anyway, the others will enjoy that Apple has implemented landscape typing capability for SMS, Mail and Notes in the iOS 3.0. However, there are smaller but useful features implemented in the 3.0 update as well, like Shake to Shuffle, which lets you turn on the iPod's shuffling mode by just shaking the device. These not being optional would pretty much transform sports people into 3.0 haters. Another one is the Wi-Fi auto login feature, which means that the iPhone or iPod will automatically connect to a paid hotspot if you have a subscription.