Yet another idea for mobile phones...

The other day my mobile phone rung, and it was so loud that I had to run to it and silence it in order not to bother others. At that moment, I asked myself, why isnt' there an option that would allow me to set loudness of the ring tone to a level relatively to ambient. That should be doable, for example, by mobile phone turning on microphone before ringing and measuring noise in order to set loudness. Or, if that could be too long (and delay ring tone), it can start ringing quitely in increase loudness as it gains more measurements from surroundings.
Does something like that already exist? I now there is an option of ringing tone starting very quiet, and being stronger and stronger. But that's not it...

An idea for mobile phone application...

It just occurred to me that it would be good (well, at least for somebody) to have application that allows caller to define music/sound that will be played on a callee mobile phone. Basically, before you press Call button, you select a melody. This allows a lot of possibilities:

• Suppose, I'm angry and I'm calling my support administrator because something isn't working. In that case I can select some pretty loud yelling of the sentence like Answer the phone you idiot! The server isn't working again. And this can be repeated as many times as necessary.
• Or, if you are calling a wife because you've stayed with guys until late and you know she's currently mad. In that case you can select ringing tone something like: Hi Honey! I'm thinking on you and I'm calling you to appologize. with some appropriate background music.
• Or, if you are trying to get to some chick, you can use something like: Hey beauty, XYZ is calling you.
• Or, if you are calling your mother in law, you can use: Hey old bat! If you didn't drop dead answer the phone!

Well, you've got the point. The possibilities are endless. :)