Here is a comparison chart between iPhone 3GS vs iPhone 4.

All the images and texts are from Apple.com

Apple just announced iPhone OS 4.0 today.

1. The main features are
2. Multitasking
3. Folders
4. Improved Mail
5. iBooks for iPhone and iPod touch
6. New Enterprise Features
7. Game Center
8. iAd

and 100 new user features including

File & delete Mail search results
Search SMS/MMS messages
Web search suggestions
Choose image size in Mail messages
Bluetooth keyboards
CalDav invitations
Larger fonts for Mail, SMS & alerts
Cell data only setting
Spell check
Persistent Wi-Fi
Gift Apps
Birthday calendar
Recent Web searches
Create Playlists
Top Hit in search
5x digital zoom
Nested Playlists
CardDav
Tap to focus video
Upload workouts to Nike+
Places in Photos
iPod Out
Home screen wallpaper
Search SMS/MMS messages
Wake on wireless

Available summer, more info here

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iPhone 3GS is OFFICIAL! You can get 3G for $99 NOW! or Pre-Order new 3GS starting at $199 arriving on June 19, 2009 at Apple.com

Here is a comparison chart for iPhone 3G & iPhone 3GS [click to enlarge]

via [gizmodo]

iPhone OS 3.0 first introduced on March 17, 2009 and now,
iPhone OS 3.0 Beta 5 and a newer version of the iTunes 8.2 pre-release to developers.
Let’s see what happens at Apple Worldwide Developers Conference 2009 in San Francisco on Jun 8, 2009

Live with Modern Technology!

Cell Phone:

Motorola DynaTAC 8000X (1983)

Specs: 13.0 x 3.5 x 1.8 inches; 1.8 pounds; 30 hours talk/8 hours standby, 10 hours to recharge; 30-number speed dialing memory
Price: $3,995
On September 21, 1983, the DynaTAC 8000X became the first FCC-approved cell phone.

Apple iPhone 3G (present)

Specs: 4.5 x 2.4 x 0.48 inches; 4.7 ounces; 5 hours talk / 300 hours standby, 4 hours to recharge; 3.5-inch (diagonal) widescreen Multi-Touch display
Price: starting $199

Laptop:

Compaq SLT/286 (1988)

Specs: 13.5 x 8.5 x 4.0 inches; 14 pounds; 10-inch VGA LCD screen; 12-MHz 80C286 processor running either OS/2 v1.0 or MS-DOS v3.21 Rev. D; 1MB RAM (expandable to 3.6MB); 20 or 40MB hard drive; three-hour rechargeable NiCAD battery; removable keyboard, optional 2400 baud modem, optional docking station
Price: Model 40 $5,999, Model 20 $5,399
Compaq SLT/286 was the first battery-powered portable PC and the first with a true VGA display.

Apple MacBook Air (present)

Specs: 12.8 x 8.94 x 0.16-0.76 inches; 3 pounds; 13.3-inch (diagonal) LED-backlit glossy widescreen display with support for millions of colors; 1.86GHz Intel Core 2 Duo processor running Mac OS X v10.5 Leopard or Microsoft Windows; 2GB of 1066MHz DDR3; 128GB solid-state drive; 4.5 hour lithium-polymer battery; Backlit keyboard ; Wi-Fi; Bluetooth
Price: starting $1,790

Digital Camera:

Apple QuickTake 100 (1994)

Specs: 1 pound; 1MB flash memory that could store up to eight 640 x 480-pixel, 24-bit color images, or 32 pictures at 320 x 240 pixels; an eyepiece viewfinder; built-in automatic flash; powered by three AA batteries
Price: $749
The Kodak-designed, binocular-like Apple QuickTake 100 was the first color all-digital camera designed for the consumer.

Sony Cyber-shot® T900 (present)

Specs: 5.2oz; 16GB Memory Stick; 3.5″ Xtra Fine touch screen LCD without viewfinder; 12.1 Megapixels ; Smile Shutter; Face Detection; HD (720p) movie
Price: $379

MP3 Player:

SaeHan Information Systems MPMan F10 from Korea (1998)

Specs: 91 x 70 x 16.5 mm; 2 oz; 32MB internal memory (10 to 12 songs)
Price: $250

Apple iPod shuffle (present)

Specs: 45.2 x 17.5 x 7.8 mm; 0.38 oz; 4GB (up to 1,000 songs); 10-hour playback time
Price: $79

first gadget resource from [Laptop Magazine]
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