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I downloaded the Netshare app that was mentioned on Lifehacker several months ago before it got pulled from the store. It still works great for me. Wireless tethering is really powerful for mobile users and I really hope Apple and AT&T get it right with iPhone 3.0.

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The problem with sharing over WiFi is that it drains the hell out of the battery life, in some cases even faster than it can be recharged from a 500mA USB port.

The iPhone 3.0 tethering is via USB or Bluetooth, and won't have that problem.

They seem to have designed it to be as hack-friendly as possible, so even if AT&T wants to charge an extra $30/month, you can get around that by just replacing one of iTunes' resources (no jailbreak required).

The problem with sharing over WiFi is that it drains the hell out of the battery life, in some cases even faster than it can be recharged from a 500mA USB port.

Yeah, I have this problem with my Windows Mobile phone. (I use WMWifiRouter.) It is better than nothing, but I wish the USB tethering worked as easily as Wifi tethering.

I haven't tested this yet, but I think that you can create an ad hoc Wifi network and share your 3G connection with 3.0 tethering too.

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