iPhone introduced a new user interface that based on a large multi-touch display and pioneering new software, allowing users to use fingers to control iPhone. iPhone also ushers in mobile devices, a new era of software power and sophistication, to redefine the mobile phone functions. iOS by Apple for the iPhone operating system. It is to the iPhone, iPod touch and iPad use. As its based on Mac OS X operating system, as it is based in Darwin.
As with past iPhone updates, iOS 5 plays catch-up with Apple's competitors and Android in particular, while adding unique features such as Twitter integration, iMessage, and online storage through iCloud. But is that enough to solidify the iPhone's standing as the best smartphone around? Not necessarily. Android still has several features that the iPhone lacks, and may still be worth considering if these features are important to you:

Widgets
Android widgets can show certain types of information directly on the home screen, such as breaking news, sports scores, incoming messages, or media playback controls. In fairness, a lot of Android widgets add unnecessary clutter to the phone, but if you can find the right widgets for you, they'll either save time or present information that you might've otherwise overlooked.

Hardware choices
Software features aside, Android provides more hardware choices for phone buyers, including handsets with bigger screens, physical keyboards or features not yet available on the iPhone, such as dual-core processors. The iPhone 4's hardware is excellent, but it may not be the perfect fit for you. iPod to Mac Transfer is specially designed for Mac user to transfer iPod files, It can fast transfer, rip, copy and manage your music, video, photo, podcast and TV program from iPod to Mac, iPod to iTunes, iPod to iPod and Mac to iPod transfer is also available.

Expanded voice commands
The rumor of expanded voice commands in iOS5 didn't pan out, so for now, Android provides more voice command options that are built directly into the operating system.Android users can dictate e-mails and text messages and get directions by speaking to the phone. They can also load music in third-party apps such as Pandora with the "listen to" command, whereas the iPhone's music-by-voice feature is only linked to the iPod app.  We tested many of ePub DRM removal software in the market, compare them from stability, speed, safety, price, and more, then we find the best ePub DRM removal tool. It's wonderful and professional to remove ePub DRM, remove DRM protections from adobe digital editions with high quality.

GPS Navigation
Android phones have offered free, voice-guided GPS since October 2009, whereas the iPhone's Maps app requires users to look at their handsets and read off directions as they drive. The iPhone has third-party apps with turn-by-turn voice guidance, such as Mapquest, but Android's built-in  method allows users to jump directly into navigation from address links in other apps. With the iPhone, you must manually copy and paste the address into your app of choice.

Setting Default Apps
The iPhone's lack of native GPS navigation wouldn't be an issue if you could set third-party apps as the default for certain functions. On Android, if you want to use alternative apps for mail, Web browsing or navigation, you can set those apps as the default for all related functions. For instance, setting Dolphin HD as the default Web browser opens all links from other apps in Dolphin instead of the stock Android browser. It's a subtle feature that makes customization much easier on Android compared to the iPhone.

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