Scripts written (java prefered)

In need a script written that will make a game object move to a clicked on location in 2D space. The speed that the game object moves to the clicked on location will need to be easily changeable in unity. I also need the script to allow for double clicking for a faster move to the location. This will need to be a separate public variable. I also need a separate script that will make a game object follow the mouse and/or finger for android in real time. When ever i say click i also mean touch as this will be used for android.