Sorry, but you've just hashed out several different topics and I don't believe in holding-your-hand-and-doing-it-for-you through all of it.
First: How to launch a web page.
Second: How to implement a click handler.
Third: How to embed a web view.
Fourth: How to play a web based video.
The first 2 points are already settled.
From what I've read, you don't even have a basic understanding of UI programming. Have you read Google's Dev Guide yet? Link
Third point: If you want to embed a webpage, just declare a WebView and add that to your layout. Then call webview.loadURL("http://icanhascheezburger.com/"); to load your web page into that web view. It's the same as adding any other view. You'll need to include the INTERNET permission in your manifest file. And before you ask, here's the explanation of the manifest file.
Fourth point: So the url you have ends in .3gp (as in, a mobile video file). Note that to a client, it doesn't matter if it's a live stream or a video-on-demand stream. They both point to an rtsp:// link (usually).
Like RS mentioned, read http://developer.android.com/guide/topi ... index.html
and then read http://developer.android.com/reference/ ... layer.html
orhttp://developer.android.com/reference/ ... oView.html
Take a look at the ApiDemo's source files under com.example.Android.apis.media included with the Android library. The links are definitely NOT bare bones and they give you all the info you'd need to start.
Those are the best examples and reading you could be doing.
Now: here's the fun part about being a programmer (you are a programmer, right?). Take all the basic stuff you know from reading this, then find a way to combine them into a coherent package that does what you want it to do.