IRS opening free online tax filing program to all states

This is exciting for me because:

• I model ny taxes in my spreadsheet anyway, so I'm likely to notice a mistake
• I usually use FreeTaxUSA to file for free, and this means there's one less party to share my personal information with
• my state's taxes are pretty simple, so I don't need state-specific tax software

I hope this helps simplify things for some people and save a bit of money as well. I'm going to try it out next year.

Do any of you estimate your taxes? Are you interested in trying out this service?