Aside from the beginners guide to how its done, which im sure ill need at some point .. just wondering if i really want to root? free tethering will deifinitely be nice, but i can live without it. Are there other advantages? With the Froyo update sure to pop in the next few months, is it worth voiding my warranty? And once the phone is rooted, is there no going back? I wont be able to get any updates or any service at all i guess?