"QuickTime 7.5.5 includes changes that increase reliability, improve application compatibility and enhance security.
This release is recommended for all QuickTime 7 users.

For detailed information on the security content of this update, please visit this website: http://www.info.apple.com/kbnum/n61798. (Apple Security Updates page)"

The Security docs page has been updated now with details on today's updates:

• About the security content of QuickTime 7.5.5
• About the security content of iTunes 8.0
• About the security content of iPod touch v2.1

Here's the info on the Front Row update:

"Front Row Update 2.1.6
This Front Row update provides improved iTunes 8.0 compatibility and bug fixes."

There's now a download page for Front Row 2.1.6.

(And as a FYI for Windows users, Apple today also released Bonjour for Windows 1.0.5 (w/security improvements) and MobileMe Control Panel 1.1 for Windows.)

• Apple Introduces New iPod nano
• Apple Introduces New iPod touch
• Apple Announces iTunes 8
• NBC Universal Returns to the iTunes Store

Here's a summary from live blogs of today's Apple event. (They've also now posted a Video of the "Lets Rock" Event.)
The new iPod Nano is just like the rumor photos. 8GB/$149, 16GB/$199. (See 4th gen iPod nano TV Ads.) Appx the same battery life as before, but includes an accelerometer for the new "shake to shuffle" feature. New headphones w/pause/play/track nav/volume control on the cord, plus a microphone are being intro'd also ($29/available in Oct.) (IIRC I had something similar but w/o Mic with my original iPod.)
Also there's a new iPod Touch w/built-in Nike+iPod (8GB/$229, 16GB/$299, 32GB/$399) - the updated page has a new guided tour video.
Version 2.1 software for Touch and iPhone is being released on Friday. (FYI - I don't own an iPod touch but the iPod Touch v2.1 update apparently is available now from the iTunes app store. ) The v2.1 update will to be free to iPod Touch owners that bought the 2.0 update, otherwise $9.99. Jobs said v2.1 was a "big update" that fixes lots of bugs (apps crashing, dropped calls, better battery life and faster backups) as well as some security improvements.

The iPod Classic 160GB model is being dropped, leaving a 120GB model ($249).
Also demo'd were new in-ear headphones with dual drivers ("woofer" + tweeter) to be available in October for $79.

iTunes 8.0 was announced (available today) with new browsing options and a "Genius" feature to automatically create playlists of like songs. (Hit the Genius button on a song and iTunes will create a playlist for you of similar songs.) iTunes store is getting new content (w/NBC reportedly coming back). HD TV shows to cost $2.99.

• Underwhelmed by iPod announcements (Cnet Music blog)
• OpenOffice.org 3.0rc1
• Bonjour for Windows 1.0.5 (Apple)
• MobileMe Control Panel 1.1 for Windows (Apple)
• Live blog: Steve Jobs hosts Apple's music event
• A big day for Apple - and Steve Jobs
• Microsoft patches 8 critical bugs in Windows, Office
• Google Promises Privacy Fixes in Its Chrome Browser (Wash. Post)
• Google reveals Chrome security patch details
• The Chrome backlash begins (Infoworld)
• Battle Tanks 0.8.7689 (freeware)
• AT&T Eases Out Whole-Home DVR
• Twitter page used to pass malware
• Sony demonstrates 400 disc Blu-ray Mega Changer at CEDIA
• Hands-on preview: Sony's full-frame DSLR-A900 (crave)
• Sony Alpha 900 DSLR: Hands On (PopPhoto)
• VW's Prius-Killing Diesel Gets 62 MPG
• (Chevy) Volt leaks (pix of production version a big disappointment compared to concept Volt)
• GM says Volt photos inadvertently posted on Web