People used to say digital cameras shouldn't be legal because it could enable child porn since people can just transfer the pics to their computer in the privacy of their own home. (yes people could dev their own film but it wasn't streamlined for "everyone" to do)
But overall the technology has benefited far more than it's hurt.
The tile is small enough to conceal under a bike seat, or if you open up a laptop you could probably cram it in somewhere, even a peripheral slot.
Pretty neat, I'm sure if they're successful future versions will continue to get smaller. Kinda neat how other tiles can update you on the location of your shit.
edit:: wonder if someone could mod it or intercept the signal to update locations of other people's valuables you could steal.