Existing users, 
Way to go, you've introduced a bug into this version. It fails to attempt a backup twice in a same day. So, a first run in a given day is OK but very subsequent time it is run it puts up an error stating that:
Backup Failed. Cannot copy 'my/keychain/path/keychain_name' to 'my/backup/keychain/path/keychain_name date (items)'
Way to go, this really makes me want to put all my eggs into your app's basket...NOT. Makes you wonder, is it also going to fail adding new passwords now? One would think you'd run your app twice before putting it up for download...sheesh!
1Password
Store your important information and log into Web sites automatically.
Version: 3.0.1
A BUG
Feedback Type: Troubleshooting Report
Contributed by: tabaks Sunday, December 30 2007 @ 10:26 AM PST
Product Platform: MacOSX
Used Product For: 1-6 months
System Info:
Comments
A BUG - howardm4
jeez, what a miserable human being.It's a great product and extremely well supported.
Sunday, December 30 2007 @ 06:03 PM PST
A BUG - Soren0
Please see: http://www.versiontracker.com/php/feedback/article.php?story=20071230145054894#commentsTry downloading version 2.5.9 BETA 1 and see if your problem is fixed. If so, post back to the link i gave you.
Monday, December 31 2007 @ 11:49 AM PST
A BUG - dudemanla
Just copy your keychains folder manually until they get an update. I think they are doing a really great job and i am sure they will iron the bug out soon. They gave the program out for free too, so.....1password peeps if you get this message. Thanks for your hard work and Happy New Year
Greg
Monday, December 31 2007 @ 11:48 AM PST
A BUG - dteare
Sorry about that. This is an inconsistent issue that only happens on some machines. The problem actually surfaced a few versions ago and I think we finally nailed the cause today. It is tough to know for certain because we have not been able to reproduce the problem locally, but I'm fairly certain this new change will fix the issue in the next updatePlease continue to let us know how to improve.
Cheers!
--Dave Teare
Co-author of 1Password
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Sunday, December 30 2007 @ 12:44 PM PST