What is the most comprehensive wireless site survey equipment on the market today?

If this isn't the best sub for this please let me know. I see that Ekahau is highly recommended but as far as I know that only measures wifi. Is there a product available today that can detect other wireless technologies like Bluetooth, Zigbee, GSM, and more all on one platform? Now I HAVE seen a product like this but unfortunately, it is not commercially available.

If one doesn't exist I'm thinking of making one.