Part of what makes Russell's book good (or at least useful) was that it connected philosophical developments to later historical events. With that in mind, I think it would be really hard to have an equivalent for 20th century philosophy - we don't have enough historical perspective yet. And that's without even getting into whether you could find a writer capable of understanding and fairly treating both sides of the analytic/Continental divide.

But if I'm wrong and someone does know of a useful work like this, I would also love to see it.