Please Explain This Guage, Arrow and Number

Please tell me the meaning of the icon and arrow in the center of the screenshot below means. I think the number may be the GPS status. I know that you can turn off the joystick as well. What does the circular portion and arrow indicate?

Also, what is the horizontal field just to the right of the circles with the yellow splodge on the left?



that is the wind estimate direction and speed.

Ok, interesting. Thanks Michael, Paul