Protoypes

Many prototype devices have leaked from Apple. Some of them are listed below:

MacRumors iPhone2G
Jan 03, 2009:

iPhone 2G prototypes first reported by a user on the macrumors forums.

Gizmodo iPhone4
Apr 19, 2010:

iPhone4 prototype first reported by Gizmodo. Brian Hogan, a 21-year-old student at the time, admitted to finding the phone at the Gourmet Haus Staudt in Redwood City, California, after it was left behind by an Apple engineer named Gray Powell, and later selling it to Gizmodo.

64GB iPhone4
Mar 8, 2011:

A iPhone4 (GSM) prototype first reported by micgadget.com. Further details on techmento.com.

White Vietnamese iPhone4
Apr 19, 2011:

First reported by tinhte.vn and further discussed on macstories.net.

US T-Mobile iPhone4S
Apr 23, 2011:

This first was reported by BGR.

TD-SCDMA iPhone4
Jul 07, 2011:

iPhone4 prototype first mentioned by mydrivers.com (in chinese).

Early iPhone4
Jul 17, 2011:

Prototype Device reported by micgadget.com which notably shows a different image when plugged into iTunes.

White iPhone4 DF3184
Aug 22, 2011:

A white iPhone 4 prototype first reported by Mathias Rios. The iPhone has a DF3184 printing at the lower front right side. Mathias Rios purchased it from ebay where it was listed as broken. Compared to an original iPhone4 (black) this prototype has a smaller back camera and the flash is also slightly further away. In addition this protoype restore mode screen (Conncect to iTunes Screen) shows an old (iTunes9 - blue Note on CD) and pixalated iTunes icon. This prototype come with a sticker on the A4 denoting it as Design Verification Test Prototype (N90_DVT_I_0010). Appearently the A4 is marked differently than the actual A4 chip in shipping iPhone, and has the same marking as earlier iPod Touches and iPhones (the "K4X2G643GE" marking).

San Francisco bar iPhone
Aug 31, 2011:

Probably an iPhone4S prototype lost in a San Francisco bar first reported by CNET.

Brazilian 8GB iPhone 4
Nov 24, 2011:

An 8GB iPhone4 prototype produced in Brazil. First reported by macmagazine.com.br. The iPhone also carries a Made in Bazil (Industria Brasilleira?) and an Anatel - which is the Brazilian Telecom regulation body - marking with number 1465-10-1993 at its back.

iPod touch 3rd Prototype
Jan 24, 2012:

The iPod Touch 3rd Prototype was first reported by Hacker Sonny Dickson. The iPod is running SwitchBoard.app and Inferno 7C1023e.