This project is interesting for a few reasons. First, the PwniePlug/SheevaPlug/etc devices have always turned me off a little as legitimate attack tools. While they stay small, they’re still ‘definitely a malicious device.’ I could never leave one in a parking lot and honestly expect someone to plug it into their network. The Pineapple does better with its Jaesager firmware, but I still have never seen a control systems laptop with Wi-Fi (at least, not turned on). Laptops themselves are about as rare as rare can be in anything ICS-related. Also, in order to get one of a PwniePlug/SheevaPlug/Pineapple device into a pen-testing site, you need physical access. With physical access, there’s a ton of bad stuff that you can do, and a malicious WiFi access point ranks moderate to low on my list of threats.
The Power Pwn is like the Pwnie Plug, but designed as a surge strip. Cleverly, it includes two RJ45 jacks. Plug one into your wall outlet, the other into your PC, but expect bad results for doing so: the onboard wifi and optional GSM modules could allow someone to insert traffic onto your network, and built-in metasploit will mean massive carnage for the unhardened network.