@Urbanmango it’s probably because the Meteor TodoMVC app is hosted on Meteor’s own server as opposed to the others on http://todomvc.com/, itself. I can image the meteor severs being a bit slower, considering all the apps that are being hosted there for free.
That shouldn’t affect the speed though because the change is happening on the client and then the server. Here’s the todo app from the official tutorial running on Meteor’s servers withoiut any delay: http://urbanmango.meteor.com/
@Urbanmango I think you might be right. Checking out the code on github, it looks a bit out dated, last commit was Jul 14, 2013. Further inspection reveals that it uses Meteor V0.6.4 yayks! If you check the code that handles the add event, it does things in a “non-meteor-example” kind of way. (Lines 95 to 102). May be that could be the case, no.