Here's another question: How many people in the world, who are current or potential Facebook users, might like to have Facebook as their first and main interfac

Here's another question: How many people in the world, who are current or potential Facebook users, might like to have Facebook as their first and main interface to the world? Facebook asked that question by making such an interface available. Guess what? In the world of rational beings (which might not include knee-jerk business reporters), it might take a while to answer that question. Here's another question: Of the current or potential Facebook users who want Facebook as their main interface to the online world, how many will spend more time and money on Facebook as a result of having that interface? Gee, I don't know. Let's let Home out into the world, and find out. Snarky folk can declare it a disaster or failure after a month--I'm sure Facebook is happy to have it out there as one of several options, and learn from actual experience. Radical concept, no?