Is the XMB Bootable yet????

I mean I love playing games for the PS3, but I would want to start out on the XMB first, at least. I'm no genius, but with an unbootable XMB, something smells like trouble. Think this might be responsible for a good amount of crashes. I really want to get into the scene, I have no idea where to start. I can write in C# and C++ but have no idea on the emulation world, espiecially when people on this forum are reverse engineering the reality synthesizer.