If Canon continues to release great lenses as it has done during the past years, I'll definitely consider buying one, 35mm is my favorite focal length.
I was really tempted by a Sigma 35 Art, I think I'll delay it a bit and see what happens.
I use my smartphone for pictures that I want to share immediately and that don't have a real artistically interest, or when I can't use my DSLR. My 6D is almost always with me, so it does all the rest.
Singapore's Marina Bay from the Marina Bay Sands hotel, 56th floor. Shot with Canon 6D and Samyang 14mm, ISO 50, 30s exposure.
Singapore - Marina Bay by Pierre Pichot Photography, on Flickr