http://www.cnn.com/2008/POLITICS/02/08/ ... index.html

Here is a snipet:
The package, which passed the Senate 81-16, will send rebate checks to 130 million Americans in amounts of $300 to $600 for people who have an income between $3,000 and $75,000, plus $300 per child. Couples earning up to $150,000 would get $1,200.

The checks are an advance on next year's refunds, and most, if not all of the money, will be deducted from taxpayers' refunds in 12 months' time.