Howto ? :: multi notes for same product in rails

Hi,

I want to create multi notes for one item. How can I do so in Rails.

Steps I want.
1- create a new item
2- write in the edit screen name,desc,....
3- Add some notes to this item ( from 1 to 20 notes)
4- Save the new item.

Any good link or nice document ?

Thanks
Henrik E

Have a look at
http://www.agilewebdevelopment.com/plugins/acts_as_commentable

Cheers,
Max