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

Play with Modern Technology!

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iPhone OS 3.0 Beta 5 and a newer version of the iTunes 8.2 pre-release to developers.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!

100 new features including

Cut, copy, and paste
Send photos, contacts, audio files, and location via MMS
landscape email

check it at Apple or Gizmodo.

image edited by CurveBean

Play with Modern Design!

100 new features including

Cut, copy, and paste
Send photos, contacts, audio files, and location via MMS
landscape email

check it at Apple or Gizmodo.

image edited by curiBOX

Play with Modern Technology!

iPhone OS 3.0 will be revealed on March 17, 2009.