It`s Gopastami today. This is what I found in sanga archives:
http://www.swami.org/pages/swami/articles/gopastami.php
I have also read the story that on that day Radharani exchanged her clothes with Subal and went with Krishna as a cowherd boy.
Oh I had missed this post! Thank you so much for doing this; I was planning to do it myself, but on the actual day I forgot...