General :: Developing Web Browser In Eclipse Using WebView

I am developing my own Chrome like Web Browser in Eclipse using WebView, so far its just a TextEdit that act as a url bar, a GO button to take WebView to whatever URL is typed, and of course the WebView showing this website.

1- When i go lets say msn.com, it goes fine but if i click -- news -- , it goes fine too, but the "URL bar" still show msn.com , it doesn't show the current URL im in, so its there a way to write to to the TextEdit or create a real url bar?

2- When i go to YouTube, if i hit play on a video it plays fine on WebView, but if i turn the device sideways, video shows liek to hit play again but you can still hear it in the background, if i hit play it just stop and wont play again any other videos, ( i found the YouTube API player and i followed what supposedly is how to use it but it never worked, i cant really find instructions on how to merge it to the app, supposedly just moved the .jar file but still playing in the browser) or how can i do in webview so when a user press play it ask you want to use browser or you want to launch youtube app, cant manage how to set up in intent for this activity.
Or how can i lunch youtube app from a button on my layout?

3- How to make android , in this case 4.0.4 recognize my app as a browser so whenever any app ask me to launch a browser, mine is on the list.

4- on my case ( galaxy s2 ) in chrome when i press menu, it pop this menu, on my app, menu key pop a little menu with settings only, but nothing happens ( of course ), how can i add items to this main menu, like About, Contact Me, Back , Forward and add stuff in settings too?

5- launch an app from a button on the app.