Hello all! Just upgraded from an LG EnV Touch to the ALLY (my 1st smartphone) so I'm doing a lot of reading etc. I'm quite tech friendly, but by no means a geek (Though I hope to be someday...) And truth be told...I just HATE the learning curve period on a new phone. I want to know IT ALL...NOW! So - here's my first big question...When & Why do I want to use Wi-Fi instead of just my regular ol' signal? I have wi-fi turned off by default as I know from my iPod Touch that leaving it on drains battery because it's always searching etc. But I guess what I want to know is if I am somewhere that I know has wi-fi available (like in my own house) -- what are the benefits of turning it on? And when it is on...does the phone default to using WiFi instead of the 3G signal? I have no idea what the hierarchy of the whole thing is etc. Someone enlighten me...please.