The problem is that my 2009 MacBook doesn't like sharing my home wi-fi network with either my iPod Touch or my new iPhone 3GS. My router is a Netgear DG834GT with latest firmware. If I turn on either the Touch or the iPhone, the MacBook looses its connection and tells me "Another device is using your computer's IP address (xxx.xxx.x.x)". I'm not an expert on either routers or AirPort so I've avoided tinkering with the settings, but I'm sure the solution is very simple! Would appreciate any help in getting my all three to share my network without causing issues. Thanks.