Binding listbox to XML - accessing node value

[Sybre]

I have a listbox which uses an XMLDataProvider as datacontext and is bound to an XPath query which returns a number of nodes with different names.
These names will vary at runtime therefore are unknown at design time and must be accessed dynamically.
I am trying to set the Item template to display both the name of the node and the value it holds. I can get the name through {Binding Name} but can't seem to get the value (I already tried {Binding Value}) - can anyone help?

XAML:

<ListBox Margin="2" ItemsSource="{Binding XPath=variables/*}">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <StackPanel Orientation="Horizontal">
                <TextBlock Margin="2" Text="{Binding Name}"></TextBlock>
                <TextBlock Margin="2" Text="{WHAT GOES HERE?}"></TextBlock>
            </StackPanel>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

Example XPATH result:

<variables>
     <SourceFolder>[WORKROOT]\startfolder</SourceFolder>
     <TargetFolder>[WORKROOT]\endfolder</TargetFolder>
     <ReadOnly>True</ReadOnly>
</variables>

So with the example I'm looking for the listbox to show 3 lines:

SourceFolder [WORKROOT]\startfolder
TargetFolder [WORKROOT]\endfolder
ReadOnly True