Hi!
I have a few suggestions for the final release. If it's too much out of that league, then please consider to implement it in any future release. Okay here it is:
1. Custom audio
The possibility to include custom audio files and send them to the client upon connect, and - of course - play them with the client when requested from the server. This could be usable for fx playing the old school "Wasted!" audio file when getting killed, "Cop killah!" when you kill a lot of cops, etc. Not limited to those examples of course.
2. HTML parser
Again, client wise. You can probably imagine what it would be useful for without me telling you. Of course it would be too much to ask you to make the whole engine yourself, so I'm suggesting you use the Gecko engine. It includes several other standards like CSS, XML, JavaScript etc.
That was it for now. I hope you take my suggestions into consideration