ABB acquires the Wi-Fi mesh pioneer Tropos Networks to strengthen its Utility Communications product group. California based Tropos Networks has delivered a large number of wireless metropolitan and campus networks over the last ten years or so and I would even say that they made Wi-Fi mesh a viable metro network solution to the market.
This acquisition by ABB is very interesting and underline the grande potential for especially smart grids but also other private network applications. Tropos has deployed private networks for applications like meter reading, ITS, mobile workforce, public safety, telemedicine, parking meters, etc.
M2M is required to solve the efficiency problems, the security issues and the sustainability challenges in the world. And many of these applications will use private networks for financial and/or security reasons. Each of these areas will develop to become ICT systems in the size of the Internet which is why really large global players invest early on. I suggest you keep an eye at GE, ABB, Siemens, IBM and similar players.
Interesting move ABB!