Yes you are right, indirectly one can consider Battery Pack as a universal charger as it can charge all the mobile phones and tablets, but that is due to USB interface used for charging. I think USB might become the universal charging port.
Battery charger is good idea for today's life. I am used to carrying an external battery pack around even though my phone is fully chargered. I have been using one from RAVPower and it really help me out.
It is indeed a nice initiative you European Parliament by introducing a policy of having a common charger for many radio products. This will include mobile phones and really it will help to the entire mankind as these days you need to keep a separate charger for each and every device. This will need to make changes at the device manufacturing level to incorporate a single charger, so as although the list specifies developments from all the power semi manufacturers but they are not leading to a single charger, may be it will require a detailed document of design and all the device manufacturers will have to come to a single platform to accommodate a single charger. Yes USB, Mini USB and Micro USB chargers has done much in this direction.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.