Thinking about using NMS... 3 quick questions

Hi,

I have 2 spare seats on my Norton sub and am thinking on using one on a new mobile phone.

I see from the Google Play Store it uses 12MB of storage. Any idea how much RAM it uses when running?

Also, if I install this and don't like it does it cleanly uninstall without removal tools etc or does it leave a trail of destruction behind?

Finally, do I install a free copy first and then rattle in my licence number somewhere?

Many thanks,

David