Filed under: HandheldsAmazon's been pretty cagey with Kindle sales numbers, except to say that it sold out the first batch in 5.5 hours and that more are finally arriving. Still, you can't keep a secret forever, and TechCrunch says they have it on good authority that Bezos and Co. have sold some 240,000 Kindles since November. Adding it all up, that's good enough for $100M in total revenue so far -- which is about what Wall Street's been predicting. Of course, t
