Depending on your carrier, their terms of service (TOS), and your willingness to break said terms and face possible consequences including death-by-over-billing, you can now tether you newly pwned/jailbroken iPhone 3G to your laptop to share the mobile 3G internet connection anywhere and everywhere you go (your coverage area, of course, may vary).
Not a 133t level hax0r? Don't worry. AT&T (and other carriers) might just offer this option, complete with inevitable bandwidth cap, 'natch, sometime in the next millennium...
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Rene Ritchie is one of the most respected Apple analysts in the business, reaching a combined audience of over 40 million readers a month. His YouTube channel, Vector, has over 90 thousand subscribers and 14 million views and his podcasts, including Debug, have been downloaded over 20 million times. He also regularly co-hosts MacBreak Weekly for the TWiT network and co-hosted CES Live! and Talk Mobile. Based in Montreal, Rene is a former director of product marketing, web developer, and graphic designer. He's authored several books and appeared on numerous television and radio segments to discuss Apple and the technology industry. When not working, he likes to cook, grapple, and spend time with his friends and family.