What would you recommend? What do you use? Do you know of something interesting about to be released?
Please, do not recommend me to use Windows or Mac OS, we are not discussing this right now. I am specifically interested to find a nice ultrabook to use for programming on linux.
Yes, I am aware of the most popular things like the Dell Linux Ultrabook and the Chromebook Pixel (and I might choose one of them). But yet, someone might know of something better.
So here are the rules:
1. It's OK if it comes with another OS, as long as it's not very hard to install linux. The hardware must work well with linux. Some minor exceptions are acceptable (eg - not working fingerprint reader)
2. Full HD or better.
3. SSD
4. Keyboard of great quality.
5. Good battery life.
A lot of the responses here are along the lines of "I think you should look at this laptop", not "I have personally run this laptop and it works great."
I bring this up because my experience with the Dell which is otherwise the best laptop I have ever used and technically meets all the right specs has been dreadful.
My advice is to seek out answers from people who have actually done what you are trying to do and get some real world feedback. Also, if all else fails, I believe the shear volume of technically inclined people who own an Apple laptop compared to products from other companies should be taken into consideration.
Good luck and make sure whatever you get has a solid return policy!