Yes, I have been using the BLE Device Monitor.
That program works on Windows 7 with the CC2540 USB dongle. Can we redistribute our version of the CC2540 USB dongle? Is the dongle a reference design that we can copy and can we get source code for the firmware for the dongle? I notice that the dongle uses the Microsoft driver usbser.sys and presents itself to the system as a virtual COM port. That is not an ideal solution but we might be able to live with that.