Timeline


 * June 29, 2007 -- iPhone is released. World's most hyped consumer product.
 * July 3, 2007 -- DVD Jon first cracks activation. People can use the apps on the phone without a subscription
 * July 9, 2007 -- dev team releases jailbreak method. The first use of this is ringtones
 * July 20, 2007 -- nightwatch ports a toolchain to the iPhone. The first apps are compiled. (but see "Revisions needed" note below)
 * August 14, 2007 -- First phones are used with other carriers by means of a SIM hack
 * August 21, 2007 -- Installer.app is released, first GUI apps are distributed
 * August 23, 2007 -- geohot and team release hardware unlock method.
 * September 10, 2007 -- IPSF releases first software unlock method for money.
 * September 11, 2007 -- dev team releases iUnlock, first free software unlock
 * November 2, 2007 -- jailbreakme is released, bringing jailbreaking to the mainstream iPhone user
 * November 15, 2007 -- New bootloader comes out, new iPhones can't be unlocked.
 * February 8, 2008 -- geohot releases software unlock for 4.6, Apple states 25% of phones were never activated with AT&T
 * February 11, 2008 -- Zibri releases ZiPhone, the all in one unlock, activate, jailbreak solution.
 * July 6, 2008 -- yiphone.org is registered in what turns out to be a failed attempt at conning the dev team to release software before it's ready.
 * July 11, 2008 -- iPhone 3G is released
 * July 19, 2008 -- dev team releases PwnageTool, jailbreaking 2.0 software on iPhone and iPhone 3G

Revisions needed: Nighwatch didn't port a toolchain. Also needed are references to iAsign and iNdependence.