Great News! The PHP/JS Chat is far enough along that I'm making it available for all to test!
So, here it is:
PHP/JS Chat Alpha Test
But, be warned, this is an alpha test, so there are likely to be some bugs - so feel free to tell me about them! You can even say it in the chat, as it is all logged!
Also, if you can think of any features you would like included - feel free to tell me, say it in the chat, or post it here!