While the Freestyle Libre website accurately words what the new glucose monitor is, all websites reporting it have not completely.

From Mashable: "Use sensors instead of needles to check your glucose level":

Diabetics who have been pricking their fingers for years finally have another option. Freestyle Libre is a small patch that can be easily applied to the upper-arm. With a simple scan, the sensor can read your glucose levels, no needles or blood necessary. The device keeps readings for up to ten days, making it much easier to see any patterns or trends in your blood sugar readings, and it even shows these readings in an easy to understand line graph. 

The product is currently available at drug stores in the United States.

There is actually some blood involved.  The patch is not just like a bandaid, or a piece of special magic tape that you adhere to your skin.  In the middle of the patch there is a "sensor" - this sensor pierces into your skin to make the readings, much like a needle.  But unlike a needle, this sensor stays in your skin for up to 10 days at a time.  Doesn't seem very healthy infection-wise.  Plus, as stated on the Freestyle Libre website, in small print with an asterisk, the sensor may not be accurate:

* Fingersticks are required for treatment decisions when you see Check Blood Glucose symbol, when symptoms do not match system readings, when you suspect readings may be inaccurate, or when you experience symptoms that may be due to high or low blood glucose.

Also, no swimming with the Freestyle Libre patch: "Sensor is water-resistant in up to 1 meter (3 feet) of water. Do not immerse longer than 30 minutes."

The Freestyle Libre website advertises the back of the patch - you can check out the inside of the patch that hits and pierces your skin in the YouTube video posted here and the first image posted with a screenshot of it.  Blood involved - on your arm and the patch.

So the Freestyle Libre glucose monitor patch is not like the thermometer strip that can check body temperature from the forehead - but even that is not so accurate either.