Update on Feb 16, 2009.

Just updated to firmware 2.2.1.  I have not seen any problem so far.  It seems Safari works more smoothly.

It was recommended in previous post not to upgrade to 2.2.1 iPhone firmware.  After a few days, many people experienced iTunes crashing after this upgrade.  Apple issued the following statement to some of the affected customers:

Dear Customer,

Recently, we uncovered an issue which was causing iTunes to unexpectedly quit when synced with an iPod or an iPhone. This issue impacted a small number of users, and we have identified your account as potentially being affected.

If you have experienced this issue, please follow these steps in order to sync your iPod or iPhone with iTunes:

1. Launch iTunes

2. Select “Deauthorize Computer” from the Store menu

3. Enter your iTunes Store Account ID and Password, then click the Deauthorize button

4. Next, choose “Authorize Computer” from the Store menu

5. Enter your iTunes Store Account ID and Password, then click the Authorize button

Once you have successfully deauthorized and reauthorized your computer, you should be able to sync your iPod or iPhone to iTunes.

I sincerely apologize for any inconvenience that you may have experienced as a result of this issue.

Thank you for being an iTunes Store customer.

iTunes Store Team

Related posts:

1. What’s Good (and Free!) in the iTunes App Store
2. IPhone 2.0 Video, ITunes 7 Confidential Screenshots
3. Should you install the iPhone 2.2.1 firmware?