Some input that I think can be good for user experience:

> Emoticon in Messaging
> Hyperlink (doesn’t functions now)
> Attachement -> Can only be sent if you write something; it would be useful to send them even in the absence of text

and for Admin:

> Possibility for simple modification of color/font in Settings from Back End
> Possibility of choosing chat bar instead of chat icon

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Two other little input for you (is it okay to write them here? Or there is a dedicated board for suggestion about this plugin?):

> When you enter in a chat, now the first messages of the conversation is seen, so you have to scroll down to see new messages. It would be better to see the first non read messages.

> It seems that now it doesn't accept the RETURN, and in a long text the paragraph are glued together.

> Useful to insert a little arrow in the chat for fast scroll Up & Down.

> Emoticon from mobile device (the one that are integrated with keybord, like emoticon in keybord of Apple device) doesn't appear.

> It would be useful if when you type in the chat, then go through the site, the text remain (as a draft).

Thank you again for your great work.

-- Edit --

> When attachements are sent one after onother, they can't be donwloaded (it donwloads only one of them).