I understand what you're saying but I haven't found a glove with excellent dexterity and excellent warmth to the point I can use them in the worst/coldest conditions.
To be more specific I was speaking about gloves themselves in the previous post. Personally my hands get cold fairly easily. Obviously mitts don't give you the dexterity needed for things like mp3, zippers, but it's been my experience with the Dakines that I don't need to go to a mitt to keep my hands warm and I'm able to do almost everything I need to do with them on. If I need to do something like light up a cigarette or change tracks I can pull my hand out with the liner still on, but I'm usually doing that on the lift so it doesn't matter much if it takes a few seconds. As long as I can move my fingers easily with the gloves on I'm happy, but I'll sacrifice a little dexterity for warmth.
The dexterity of a glove and the warmth of a mitt!
I don't personally own these but they do look interesting.
DAYS 14/15: 4
2014 Bataleon Camel Toe
2011 Ride Highlife/K2 Auto Uprise
2010 Bataleon Goliath
2014 Flow Verve/Ride Revolt