Ultimate Mobile OS Showdown: iPhone vs Android vs webOs vs Blackberry vs Windows Mobile vs Symbian
Media Support
The iPhone is a powerful media player. Audio support includes unique formats such as Audible audiobooks and WAV in addition to the typical formats. WAV support is particularly helpful for those who record music on their Mac or PC. Of course, the chief complaint about purchased tracks is that you cannot use them on other devices or computers unless you use iTunes, but that trend has changed in recent months with unprotected purchased music. Video support is also stellar: the iPhone 3.0 OS supports H.264 and MPEG-4 in full 30 fps. With MPEG, the video can be encoded up to 2.5 Mbps at 640 x 480 pixels, 30 frames per second. Most importantly, you can drag-and drop music and video files into iTunes on your desktop and the program will convert to a format that will work on the iPhone, such as Windows Media video to MPEG-4, so you sync the files. The iPhone only supports the PNG and JPEG image formats, which is not a crucial problem but still mildly limiting.

Turned in landscape view, high-def MPEG-4 videos play at 30fps and look crisp and colorful.

The iPhone 3.0 OS is just as capable a media player for music and videos as the iPod itself.
Organizational Tools
With all of the other fanfare over unusual apps and media playback, it's easy to forget that iPhone 3.0 is a capable personal organizer. There's a Contacts app that's also available from the phone dialer, a calendar that syncs with iCal on the Mac, and a notes app. The new Voice Memos app in iPhone 3.0 is helpful for keeping you organized because you can record memos to yourself and sync them back to your desktop. New copy/paste features in iPhone 3.0 also help you move data around – copying a meeting location from an e-mail or Web site into the calendar app, for example.
That said, the PIM features on the iPhone are rudimentary at best. The Palm Pre does a much better job of popping-up reminders on your schedule and tasks, and BlackBerry OS has significantly more advanced features for syncing to your Microsoft Outlook calendar.
You can sync your Calendar on the iPhone with your Mac and the MobileMe service.
PC and Database Sync
It's easy to overlook the impact of iTunes on the success of the iPhone. The software makes it easy to sync movies, music, photos, ringtones, audio clips, and podcasts. Apple offers the MobileMe Web service for syncing your schedule, contacts, and mail from MobileMe.com and your iPhone. Several iPhone apps sync with a remote servers as well. Daytlite Touch is one good example – the app can fetch data from the Daylite Server running on a Mac. Qlikview also uses business intelligence data running on a server. Web-based tools such as Salesforce.com, Quickbooks Online, and Filemaker Bento all provide iPhone apps that work with a remote database. This is one of the major strengths of the iPhone 3.0 OS: it is so popular and trendy that companies such as Quicken and Salesforce feel compelled to make an iPhone app version of their Web software. Interestingly, while there are hundreds of millions of Nokia phones in use, those same companies do not bother with a Symbian S60 version.
Messaging
Messaging in iPhone 2.0 OS was always a weak point. After all, could a phone OS that does not tap into Microsoft Exchange and use push e-mail ever really make inroads in business? With the 3.0 upgrade, push e-mail is now available, and you can set it to send messages automatically every 15 minutes, 30 minutes, hourly or only manually. You can even configure accounts you use different – one that fetches an done that does not. The 3.0 release supports Microsoft Exchange, and it just worked – you tap in a username and address, domain, and the Mail app will connect up and get new mail.

The major new messaging feature in iPhone 3.0 is the ability to push e-mail to the handset.

You can also configure Microsoft Exchange in just a few steps for corporate mail.
Flash Support
The iPhone does not yet support Flash animations, or even the Flash Lite 3.0 specification. Some Flash dependent sites will load with non-Flash images that look and function about the same, but most sites that only support Flash, such as Cinemanow.com, will just show an error message.

No Flash support yet for iPhone, the OS just displayed an error message for Cinemanow.com
Network support
The iPhone 3.0 release and the 3GS model support both EDGE (tested at 150 Kbps) and HSDPA 3G (tested at 2 Mbps) networks. Bluetooth support for stereo audio was a major upgrade in the 3.0 OS release because it now means headsets such as the older Plantronics 590E we used for testing will play stereo music instead of the normal mono audio. The iPhone 3GS supports 802.11g but not 802.11n, which is a poor match for the MacBook line, Apple TV, and Apple routers that all run with the n standard.
Conclusion
More apps than any other OS, powerful media support, and an easy-to-use interface make iPhone 3.0 is the major contender in the smartphone war. Yet, the OS falls behind by not supporting true multi-tasking and offering so-so PIM tools, both of which are offered on Palm Pre and BlackBerry OS.