Lots of applications exist for very simple and targeted sensors capable of adhering to any shape or object. Assuming the circuit performance is stable and repeatable in bulk then adding simple memory to it (for read back later), or perhaps a simple RF or NFC link would be all that you need to get commercially viable (and very cheap) sensor systems.
These researchers claim to be able to fabricate simple sensors and similar circuits that can be directly attached to the objects being monitored. The inexpensive process should enable them to be used for all sorts of interesting applications, such as monitoring food spoilage.
Replay available now: A handful of emerging network technologies are competing to be the preferred wide-area connection for the Internet of Things. All claim lower costs and power use than cellular but none have wide deployment yet. Listen in as proponents of leading contenders make their case to be the metro or national IoT network of the future. Rick Merritt, EE Times Silicon Valley Bureau Chief, moderators this discussion. Join in and ask his guests questions.