Based on discussion in this thread:

http://groups.google.com/group/liftweb/browse_thread/thread/eb8cb01dcb828b9e

1) Remove all HTML generation other than the core <input/> element from Field toForm methods
2) Move this logic to a trait that can be mixed in to fields for users that want to maintain current HTML generation

There are some additional methods on Field that I think are only used for this display stuff that can probably be removed from Field and put in the newly created trait as well: displayName and label.

See also this related ticket:

https://www.assembla.com/spaces/liftweb/tickets/594-overriding-field-label-not-affecting-textareafield-tofrom