Since my Gb update, I have wanted to go back to froyo so I can get my root back using z4root. Problem is, all the help I got just gives general info on things like "just sbf back to froyo" or "go to this site and follow directions" that's great if you know what they're talking about. I don't. Are there any how to books on learning the android system? Explaining what the terminations mean? I'd live to learn.