This time I have fewer opinions, and more things to think about.
I have many options and opportunties, and fortunately I am in a place where I can decide without rushing.
As for MySQL and Drizzle and Gearman and MemCacheD? They are all open source, they are all GPLed, so they are all remarkably immune to the threats and risks of corporate games. For as long as people use them, there will always be support and services and fixes and features for those projects.
Sun Java and JVM are open source and GPL now, so they also are safe.
For other stuff? I have no idea. I hope for the best.