Some requirements to get your iPhone 5 or iPad Mini jailbroken are:
5 minutes of your time
A computer, running Windows (XP minimum), Mac OS X (10.5 minimum) or Linux (x86 / x86_64)
An iPhone, iPad or iPod running iOS 6.0 through 6.1 (Settings / General / About => Version)
A USB cable to connect the device to the computer
It appears that the jailbreak is 68% complete with applications for Windows and OS X complete, some testing and a Linux version are remaining.
Sunday is the drop date according to a few hints out on Twitter
Evad3rs also linked Evasi0n.com for the source of the jailbreak.