>Also in terms of stability ive yet to hear of a jvm based project with 99.999% uptime.

Azul systems has said that for many clients, they've achieved perfect reliability in terms of uptime, and that the only reason they don't have five nines uptime is because deployments happen often enough that it doesn't count as uninterrupted uptime.

> Finally, I wait anxiously for the day that a single jvm can handle as many concurrent processes as a single erlang execution environment.

It sounds like you are talking nonsense. Do you understand that a 'single jvm' is one process, so to say that a single jvm can handle as many concurrent processes is meaningless. Do you mean threads? I'm quite certain the JVM's thread scalability is much higher than erlang's vm. Are you familiar with the architecture of either?