Just to make it clear, some people (including myself) have been talking about Renraku importance story-wise, others about its importance background-wise.
Renraku Computer Systems still is one of the ten largest megacorporations in the world. It still employs millions of people and makes billions of nuyen in computers, ships, weapons, services, and toilet seats. By 2073, The Economist and The Wall Street Journal probably mention Renraku as often as any other of the Big Ten. There still are a bunch of ideas to use Renraku in games (otherwise, the person who wrote the Renraku chapter in Corporate Guide wouldn't have done his job). What there was not, however, is a big role for Renraku to play in the technomancers crisis, the tempo traffic, the War in Colombia, the Denver Treaty negotiations, and the artifacts hunt (it does appear in two adventures from Corporate Intrigue, but it could be easily replaced with any other corporations).
