Ensure you have upgraded to iPhone OS 3.0
Jailbreak your iPhone 3G using redsn0w or PwnageTool (this will also install Cydia/Icy)
Run Cydia or Icy
Please add the repo repo666.ultrasn0w.com to Cydia or Icy. That last “o” is actually the number zero “0”! If you use the letter “o” you’ll get an error.
Search for ‘ultrasn0w’ in cydia or [...]

For those not quite sure, you do not need ultrasn0w to unlock the 3.0 firmware on the 1st gen iphones.
If you have a Pwned iphone already, simply download the 3.0 firmware, connect your phone, click SHIFT + the UPDATE button (Don’t click on UPDATE alone) in iTunes – I used version 8.2.
Simple. You’ll have a [...]

Today the Dev Team will post – but not release – a demo of yellowsn0w running under iPhone 3.0 firmware. NB – This is not a carrier unlock for the iPhone 3G S but for the 3.0 firmware that will appear on Tuesday.

There is a new iPhone, coming June 19, about a month earlier than expected. There is a $99 iPhone, available now, which is not good news for Palm (PALM).

A Russian-iPhone fan site reports that the cameras used by the iPhone works better under the new OS 3.0 beta. They took a picture of a cat while moving their equipment, of course, image quality is not the best, but as you can guess, the picture looks better in comparison with 3.0 under 2.2.1.
       3.0 [...]