The Apple iPhone was originally introduced in 2007. Since then, there have been a variety of problems associated with the smart phone. Complaints have ranged from connectivity issues, "missing" functions to a controversy over hundred-plus-pages for phone bills.http://news.cnet.com/8301-17938_105-10266635-1.htm

Currently, Apple's biggest problem seems to be its inability to meet the extremely high demand for the iPhone 4. Some have accused Apple of purposely creating a shortage of its product to promote interest and a higher demand for this new version. Apple COO Tim Cook, however, strongly dismissed these allegations and expressed great surprise on behalf of the entire company. He also explained that Apple thought it was a bold step to produce one million units per fiscal quarter and that industry insiders predicted it would have taken an entire fiscal year to move that many units of the iPhone 4. Since its launch in June, however, about 1.4 million units have been sold each fiscal quarter.http://www.channelregister.co.uk/2010/07/21/apple_supply_and_demand_problems/<ref>

• UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz)
• GSM/EDGE (850, 900, 1800, 1900 MHz)
• 802.11b/g/n Wi-Fi (802.11n 2.4GHz only)
• Bluetooth 2.1 + EDR wireless technology
• Video recording, HD (720p) up to 30 frames per second with audio
• 5-megapixel still camera
• VGA-quality photos and video at up to 30 frames per second with the front camera
• LED flash
• Photo and video geotagging
• 16GB or 32GB flash drive capacity
• Available in white or black

Mac System Requirements

• USB 2.0 port
• Mac OS X v10.5.8 or later
• iTunes 9.2 or later (free download from www.itunes.com/download)
• iTunes Store account
• Internet access

Windows System Requirements

• PC with USB 2.0 port
• Windows 7; Windows Vista; or Windows XP Home or Professional with Service Pack 3 or later
• iTunes 9.2 or later (free download from www.itunes.com/download)
• iTunes Store account
• Internet accesshttp://www.apple.com/iphone/specs.html

iOS 4 Software Update works with iPhone 4, iPhone 3GS, and iPhone 3G, but not all the features are compatible with all devices. Here are some new features:

• Multitasking
• Folders
• Upgraded Mail
• iBooks
• Create playlists
• 5x digital zoom
• Tap to focus video
• Faces and Places in Photos
• Home screen wallpaper
• Gift apps
• Spell checking
• Wireless keyboard supporthttp://www.apple.com/iphone/softwareupdate/