I'm very new to jailbreaking, so please bear with me. My question is, people have said - mywi (or tethering) KILLS battery. ok.. but why is this an issue? supposedly if you tether, you're giving wifi to your laptop right? wouldn't your laptop be plugged into an outlet? couldn't you plug your phone to your computer thus charging it? I'm not sure why people are concerned with battery drain for tethering? unless it's for something like the ipad? Please enlighten? thanks!