iPhone OS 2.1 released; many bug fixes/improvements claimed

Apple has released iPhone OS 2.1, as promised, with the following, surprisingly detailed release notes:

• Decrease in call set-up failures and dropped calls
• Significantly better battery life for most users
• Dramatically reduced time to backup to iTunes
• Improved email reliability, notably fetching email from POP and
• Exchange accounts
• Faster installation of 3rd party applications
• Fixed bugs causing hangs and crashes for users with lots of third
• party applications
• Improved performance in text messaging
• Faster loading and searching of contacts
• Improved accuracy of the 3G signal strength display
• Repeat alert up to two additional times for incoming text messages
• Option to wipe data after ten failed passcode attempts
• Genius playlist creation

To apply the update, connect your iPhone to a Mac or PC running iTunes 8 then click the "Update" button.

Do Apple's purported fixes hold true on your iPhone? Let us know.