Hi Guys,
I wanted to ask here because I trust your guys & gals opinions & guidance..
Where is there a good site and fairly plain english that can explain step by step how to jailbreak an Iphone.
I have a co-worker that wants to look into this...
TIA
What you select depends basically on what computer you use. iPhones must be jailbroken from a computer (to the best of my knowledge).
I recommend to visit this site
http://ih8sn0w.com for windows tools to unlock and/or jailbreak an iPhone (do I have to use that word?

)
There are two tools there. One,
f0recast, allows you to check if the device can be unlocked and/or jailbroken. The second one,
Sn0wbreeze actually jailbreaks the device.
f0recast is really important because it will tell you if the device can be unlocked, if it can be tethered and IF it can be jailbroken. Sometimes, f0recast will notify that you have to downgrade the device, so the process can work.
Remember that Apple IOS is not open source, so the jailbreak requires reverse engineering and does not always work with the latest ROM version. So, sometimes a downgrade is required.
Another interesting solution (not tried by me) seems to be
Blackra1n. The tool can be used on both Win and Mac.