I had a friend bring one about ten years back and I have been fascinated by them ever since for wilderness camping. It was amazing to me how accurate it was.

By the way, we use Sherpas. Used to be when they were kids we would have to carry all there stuff.  Now that we're older with our health issues they are the ones running across the portages with double loads while we are struggling. 

starwatcher

So a 10 ounce sherpa that fits in your pocket will make or break you or you'll have to get paid to carry it?    Sure am glad I dont trip with any of you. My main use is for traveling or fishing, it is a very nice to be able to tell if a front is coming in based on barometric pressure, or if this would be a real good day to fish real hard or paddle real hard, a good night to really button down or not or sleep under the stars. For me and the limited time I have tripping in Quetico it is worth the 10 ounces I have to carry for the benefit it provides. Peace out

Oh - wait, you were being a bunch of smart @sses

I was going to make a similar comment but held off till someone else did. I knew someone would!
I actually googled it and couldn't come up with what you might be referring to.
I think it would be cool if my tripping partner would bring one, wind speed, temp. and forecast could be interesting.
I'm just carrying too many gadgets that do not get used enough to justify. My other gadgets cover a lot of the same things.