We've had 10-point touch for well-over a decade now, but I really don't see the UI paradigm for multi-use has evolved. If I lay this down flat, what apps can 2 people use concurrently like whiteboards or diagrams? Even 2 instance's on the screens won't work because I've not seen much handle multiple concurrent drag-selection. What can I plug 2 mice into and get 2 mice cursors?