I think Java is a pretty good choice, especially for doing comet or any other problem where performance is required. Today Java's perfomance almost matches the

I think Java is a pretty good choice, especially for doing comet or any other problem where performance is required. Today Java's perfomance almost matches the speed of C or C++... I have some time ago played around with using Jetty's continuations and it's pretty impressive (and highly scaleable). In my next iteration I'll probably try to go with the long polling model and I'll probably explore C and Java. Thanks for sharing your architectural notes.