What makes iPhone a great business phone? Simple. The same features that make it a revolutionary mobile device. With iPhone 2.0 software, iPhone does even more for your enterprise. It supports Microsoft Exchange ActiveSync, delivering push email, calendar, and contacts. And it gives mobile users secure access to corporate resources with Cisco IPSec VPN and wireless network services with WPA2 Enterprise and 802.1X authentication.
Apple : The best phone for business ever.
Screen and interface
The touch interface of the iPhone is a touch screen that can be used with a stylus or just the fingers. The screen's resolution is 320 by 480 pixels and measures 3.5 inches.
The display has three sensors. The first is the proximity sensor, which allows automatic turn-off the moment the phone is placed near the user's ears or face. This is to lengthen the life of the battery and to avoid spurious input from the face and ears of the user. It also has a 3-axis accelerometer sensor for auto-rotate, that is able to sense the phone's orientation so it can accordingly change the screen. The third one is the ambient light sensor, which adjusts the brightness of the display, depending on the surrounding light quality. Music playing and Internet browsing can support the three screen orientations, although videos can only be viewed in the wide screen orientation.
Audio & Music
The quality of listening is a familiar experience, and though a portable MP3 player is never likely to capture the full sweep of sound quality, it does make a fair job of the task in hand.
And another word of warning: if you don't have the headphones plugged in, the iPhone plays audio over its built-in speaker. The volume doesn't go dangerously loud, but it's still probably classified as Asbo-worthy.
There's enough capacity for around 2,000 songs, which will be plenty for casual users – those who use existing music phones or lower-capacity iPods - but is likely to disappoint hardcore music fans. I found myself wanting a little more space; and not just for music.Video & Imaging
The iPhone can't capture video; the camera is for still images only. This is a real pity; most other cell phone cameras can at least capture low-resolution video for candid video shots, and some can do much better. Many higher end handsets capture video at 320 x 240 or better, good enough for posting something on YouTube. The N95 captures VGA (640 x 480) resolution video. Only the BlackBerry 8800 can't capture video, and that's because it doesn't have a camera.
