Not that this is what the thread is about, but I looked into the touch instance support of the ExoPc and found out the wikipedia entry is misleading, namely the touch instance support is limited to 2 touch instances.

I think Exo got misled by their OEM supplier.

I asked Intel support for the Exo engineering sample to look into it and got the reply.

"EETI [say the] eGalax PCAP7200 hardware only supports 2-touch." [they said that the] "PCAP7200 just support 2 touch instances, this is limitations of the hardware.
If you want that support 10-touch instance, it must collocate to EXC7900 and EX5920 IC.”