In the current Ember (1.10 as of this post), helpers now accept both quoted arguments or arguments that will be looked up as attributes in the current context. I believe this was changed in Ember 1.2 ( change log ).
If quoted, the argument will be used as a string:
{{#link-to 'post'}}Posts{{/link-to}}
If not quoted, the argument will be looked up in the current context:
{{#link-to routeName}}Go To '{{routeName}}'{{/link-to}}
This will be a link-to that points to whatever the routeName
property currently is set to. This can be updated dynamically.
Here is an example JSBin showing this in action: http://emberjs.jsbin.com/nelafep/1/edit?html,css,js,output
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