Note title column is resizable now. However, it is only resizable to so much. It would be nice if we could make the column smaller. I use a view with note on the left and have that as small as possible also - it'd be nice if could make the note list column a little smaller, but can hide it if need be.
Screenshot below shows it as small as I can make it - I also have created and updated dates as columns. This is on a 15" MBP and maybe its different on different screens
Here is same with it larger title column.