It is now upon us. If you extended your individual income tax return prior to April 15, 2009, the day has come to file. October 15, 2009 is the last day to file, and there are no additional extensions available. If you file past this date you will be late and incur a late filing penalty.
If you cannot possible make your filing by October 15, 2009, you need to file as soon as possible after that date as you can. It is a crime to not file an income tax return. President Obama has proposed raising the criminal penalty for non-filing to that of a felony. That tells me that the government is taking non-filing very seriously.
Bottom line, file on time if at all possible.