To answer my own question (I wish I'd been able to copy from the iTunes window :( ):

This update contains many bug fixes and improvements, including the following: * Enhancements to Maps -Google Street View -public transit and walking directions -display address of dropped pins -share location via email * Enhancements to Mail -resolved isolated issues with Schedule fetching of email * Improved stability and performance of Safari * Podcasts are now available for download in iTunes application (over Wi-Fi and cellular network) * Decrease in call set-up failures and drops * Improved sound quality of visual voicemail messages * Pressing the Home button from any Home screen takes you to the first Home screen * Preference to turn on/off auto-correction in Keyboard Settings

...

For information on the security content of this update, please visit this website: http://support.apple.com/kb/HT1222

Improved stability and performance of Safari, thank god. My MobileSafari has been crashing at an ever-accelerating rate. I can't even load the Apple store, and you know that that has got to be a priority one bug.

Public transit in Google maps?! Finally!

I was pretty bummed when my Google maps lost features when I upgraded from my Treo 750.

I suppose the removal of Podcaster is now explained by the new ability to download podcasts from iTunes. Podcaster would essentially be killed by now but why didn't they let the developer sell his app for a couple of months? It sounds like it would have been good for everybody.

Good update though!

Then the people that bought it would have complained that Apple let them pay for a feature that came out for a free a couple of months later.

That's the problem with secret roadmaps.

Enhancements to Maps - Google Street View - public transit and walking diretions - display address of dropped pins - share location via email Enhancements to Mail - resolved isolated issues with scheduled fetching of email - improved formatting of wide HTML email Improved stability and performance of Safari Podcasts are now available for download in iTunes application (over Wi-Fi and cellular) Decrease in call set-up failures and call drops Improved sound quality of visual voicemail messages Pressing the Home button from any Home screen takes you to the first Home screen Preferences to turn on/off auto-correction in Keyboard settings

The most important one: over the air podcasts. Sweet!

This was available software for previous firmware versions, but Apple stopped their customers from using it.

It doesn't seem like it has propagated through their CDN yet, I get the updated page every few page views. In the meantime though, its been copied to here: http://hotiphoneapps.wordpress.com/2008/11/21/apple-releases...