Sorry, I haven't been into this forum for sometime - but this is a well-timed thread.
I have just spent the afternoon refining some XML for RHP clients that monitor the site for game and message events. I will publish the XML documents as soon StrayJay gets back to me with any comments. I look forward to his next version of Red Hot Probe which should use this – there should be a lot of cool things in there.
A Java client exists too – I will be contacting the developer of that client soon (again, once StrayJay is happy with my new stuff). If the Java client is brought up to date, then there should be no reason why everyone won’t be able to run at least one version no matter what platform they run. (I myself will code a C# version at some point in the future.)
Anyway, this is the first step to opening up all of RHP to XML - in fact, I will go one step further than preparing a my games list in XML, I will give you the game state too, so you can even write an interface for playing the game. I have intended to do this since I wrote RHP Live, which uses XML to communicate between peers - in fact, I could bastardise that code to do just this in next to no time.
Anyway, there you go. Plenty of interesting stuff on the horizon.