http://www.apple.com/iphone/technology/specs.html
Technical Specifications
Screen size 3.5 inches
Screen resolution 320 by 480 at 160 ppi
Input method Multi-touch
Operating system OS X
Storage 4GB or 8GB
GSM Quad-band (MHz: 850, 900, 1800, 1900)
Wireless data Wi-Fi (802.11b/g) + EDGE + Bluetooth 2.0
Camera 2.0 megapixels
Battery
Up to 5 hoursTalk / Video / Browsing
Up to 16 hoursAudio playback
Dimensions 4.5 x 2.4 x 0.46 inches / 115 x 61 x 11.6mm
Weight 4.8 ounces / 135 grams
I still want to know if it has a silent vibration alert.