I like it - quick, easy/simple to use, I was/am working on something similar for PM purposes (after something very basic, tracking multiple projects, tasks/blockers within projects etc. for 1-2 users)
What are your future plans for Tasskr?
Meteor.js looks amazing, if they come out with auth I may re-write it again with sharing tasks. Other than that I plan to keep polishing and adding features.
Hmm. I like it. It has a newness to it. However, Nozbe does everything I want plus shave my back every Tuesday, so I don't think I'm going to change.