The IRS has a new and improved stimulus payment FAQ up and running on their website, so if you have additional questions you should check it out. Of note, the IRS has now definitively said that those who owe back taxes, or have delinquent child support payments or student loans will have their payments offset.
Here’s another common question…
Q. I have moved since filing my 2007 tax return. How will my payment reach me?
A. You should file a Form 8822 with the IRS and a change of address notice with the U.S. Postal Service. This will ensure your check is sent to your new address. Without your current address, the check could be returned to the IRS as undeliverable.