Why not try 6 of them!

I'm tempted to agree with the analyst quoted in the article on CNet who commented about UPS's new Delivery Information Acquisition Device (DIAD) that "It reminded me of 'shock and awe. There are just so many different kinds of weapons, tools and technologies."

The device connects to 6 networks, including Bluetooth, GPS, GSM, CDMA, and WiFi.

Even for me, that'd be quite a bit.