Tore,
It's not for display only purpose like a label. You'd be letting the user enter some value and doing something with it elsewhere in code.
I rarely use them. I'd say 98% of the time I bind to a field, 1.9% of the time I bind to a property and 0.1% bind to nothing.
(This is a guesstimate I didn't do a complete analysis of every form/class I've ever worked on *bg*)>I never use unbound textboxes, for static information I always use labels instead, but I guess it's a matter of taste.