Whew! So many questions!

I don't have all your answers, but here are a few: Other people have had success with Dolphin, Opera and some others. Look for "Browsers" in the Apps thread. I use the built-in browser plus my Roboform browser even though there are some fiddly issues with the keyboard or the zoom tool. You can double-tap to zoom in and out.

Don't know what to tell you about the other stuff. Sometimes it's hard to get the keyboard out of its own way, but usually if I keep trying I can manage it. Did you get into your att account?