Alloy Two-Way Model Binding

I have a view that uses data-binding in it with a text field like this:

<TextField class="form-field" id="Name" value="{modelName.name}"/>

Looking at the generated controller for this, it doesn't appear that this is a two-way binding. That is, the model will update the text field, but the text field change won't update the model. Is that true? Is this feature planned?