It looks like I’m going to have to join the rest of the world and tether myself to a cell phone—because the new iPhone 3G completely, totally rocks: MacRumors.com : Worldwide Developer Conference 2008 Keynote Live Coverage.

11:46 am The iPhone 3G will be available July 11th in 22 countries. The maximum price around the world is $199 USD. Now showing an ad.

11:45 am $299 for the 16GB — a white version of this size will be available too.

11:45 am Now on to the final challenge — affordability. Started at $599 for an 8GB iPhone, now $399. The iPhone 3G 8GB will sell for… $199.

11:43 am That rollout will occur over the coming few months.

11:43 am China, Japan, Australia, etc. 70 countries total.

11:42 am Checking off 3G from the list of challenges. The second challenge, enterprise support, is fully built-in and can be checked off. The third challenge, third party application support, can also be checked off. The fourth challenge, more countries, can be checked off as it will be available in Canada, Mexico, Norway, Sweden, Netherlands and many others — “It’s a Small World” is playing as countries continue to appear on the map.

11:39 am With GPS, the iPhone can do tracking. A pulsating dot is moving across the Google map as a car drives down Lombard street.

11:38 am Data from cell towers, WiFi networks, and now — GPS.

11:38 am GPS support now integrated into the iPhone.

11:38 am 3G has great battery life on iPhone. 300 hours of standby, 2G talk-time now has 10 hours (as opposed to 5), 5 hours of 3G talk-time (most phones only have 3 hour 3G talk time), 5 to 6 hours of high-speed browsing, 7 hours of video, 24 hours of audio.

11:37 am Now demoing an email download. The email attachment took 5 seconds to download on 3G and 18 seconds on EDGE. 3 seconds on WiFi.

11:36 am 2.8X faster. Approaching WiFi speeds (WiFi scored 17 seconds). When compared to other 3G phones (Nokia N95 and Treo 750), the iPhone is 36% faster — and better looking.