v8 has the ability to snapshot a program just after it loads, but before it executes. If you snapshot after doing some kind of warmup, to trigger the right optimisations, you get something that should fire up ready to go, which is probably the main problem - the compiler being repeatedly invoked and parsed from javascript and compiled on the fly.
One problem with taking the v8 snapshot and using it as a binary executable is that it will probably be much slower then running v8 live. Although the startup time will be 10x faster. The runtime will be 10x slower.
