Labels for scatter plot items

[Dennis Lee]

I used a scatter plot to visualize a pin layout and I'm creating a toggle feature to show/hide the pin names. Is there a way to attach a label or text below each scatter plot item (2000+) without severely affecting performance? 

Sample:

[Cameron Allan]

I would also be very interested in knowing this (although I am using a GraphItem, rather than a ScatterPlot). I have been able to create TextItem's, but I can't find a way to add them to the view.