the following issues are known:

- if you use fieldnames which have the same name as methods (e.g. 'Description')
  then the default field value will be something like:

  <bound method TTWObject.Description of <TTWObject at /ttwtype/mytype>>

  (as a string). Thus be careful.

  Values will be stores as direct attribute of that object
  
  (I don't know if it's possible to create custom accessor methods automatically
   on the fly in order to store values in some dictionary or some sort of pluggable
   storage.)