• Apple iMac 27-inch (Core 2 Duo) review (PCmag - rated 4 out of 5 stars)
• iMac review - 27 inches and less chin (gizmodo)

"Even faster performance. (NEW)
Based on the IEEE 802.11n specification, AirPort Extreme uses a technology called multiple-input multiple-output (MIMO) to transmit multiple data streams simultaneously. The result? AirPort Extreme delivers data transfer speeds up to five times those of 802.11g wireless networks - while achieving up to twice the range. (1) And improvements in antenna design give you up to 50 percent better Wi-Fi performance and up to 25 percent better range than with the previous-generation AirPort Extreme Base Station.(2)"

I'd almost forgotten about it earlier but a reader last week mentioned that Fry's had stopped selling the AE bases (at a local store and online) and many stores were out of stock, which brought up the question of a new model coming soon.
Rumors say the new bases have 3x3 (radios/antennas) vs 2x2 in the previous model. (MiMo isn't new, even many adapters use MiMo for some time now - some mac notebooks in the past used Atheros based N cards with 3 antennas IIRC, although the more commonly used Broadcom N card in most Macs has only 2.)
[Update - Despite this Oct. 20th article on 3x3 in the new bases that's not true per this new model teardown showing it has only 2 antennas per radio (2x2). A new board (with 128MB vs 64MB ram) but still 2x2 like the previous model]
The other question is now that 802.11n was ratified (no longer draft) a couple months ago if it has non-draft N/updated firmware. (No new updates to the previous Simul Dual-Band AE N base since 7.4.2 some months back.) [I wrote the reader with a new AE base to ask about the firmware version in it - he replied v7.5.]

(BTW - I'm sure owners of failed 1st gen TC's are also wondering if there's any PS/caps improvements in new models.)

"(Late 2009) iMac 21.5in Disassembled
Pointed out of internal design and disassembled from KODAWARISAN.
Sorry in Japanese. Red circules are Hints.
Japanese article
(Google english translated page)
Best, Mitsunobu
KODAWARISAN"

• iTunes: How to share music between different accounts on a single computer
• How iTunes remembers audio CDs
• iTunes Store: Error (-50) when downloading purchased content
• Can't connect to the iTunes Store
• iPhone: What to do if you can't send or receive Mail
• Mac OS X v10.6: Printer and scanner software
• How to enable iTunes in the Windows Vista and Windows 7 Firewall
• Using MSCONFIG to troubleshoot conflicts in Windows Vista and Windows 7
• Troubleshooting iPod contact and calendar syncing for Windows Vista or Windows 7
• Removing and reinstalling iTunes, QT, and other software components for Windows Vista or Windows 7
• iTunes for Windows: "iTunes was not installed properly. Please reinstall iTunes" message
• iTunes for Windows: May quit unexpectedly when playing protected content from iTunes Store (check if BitDefender Internet Security 2010 installed)
• iTunes for Windows: iTunes Store connection troubleshooting
• What to do when Windows displays a blue screen error message or restarts when syncing the iPhone/iPod touch
• Syncing contacts and calendars to iPod with iTunes for Windows Vista or Windows 7
• iTunes For Windows: Unable to create a new Apple Account or view account information in Windows Vista and Windows 7
• About iPhone carrier settings updates in iTunes

• Apple Magic Mouse review (reghardware uk)
• PC vs. Mac now vs. PC and Mac then
• Mac vs. Windows 7: Four new videos
• Mac vs. PC; Ads and Momentum
• iPhoto '09 Faces Bug Awaits Apple Update
• Google's Sergey Brin admits Chrome for Mac delays are disappointing
• Video hilarity: Windows 7 launched on a MacBook Pro on NBC's The Today Show (background pix of early MBP w/Win7)
• Psystar 'Rebel EFI' Patch Installs Snow Leopard On Any PC (with supported chipset, etc. - Rebel EFI trial is very limited (2hrs?) - appx $50 'intro price'. There's a FAQ but not found any list of supported motherboards, etc. there. (EFI-X dongle vendor included a list of supported hardware.) Not that I would buy either personally.)
• Nokia could seek up to $1 bln for iPhones -analysts (ref: lawsuit over patents)
  
  Misc. Software Updates:
• Ableton Live 8.0.8
• Earthworm Jim 1.0.8 (iPhone/Touch game)
• App Turns iPhone Into Dime Jukebox
• doubleTwist 1.0b11
• ABC News app v2.0.1
  
  Other/Misc: (later added first)
• WorldBench 6 Released, Works on All Windows 7 Editions
• Heaven Benchmark (w/DX 11 support)
• Hotfix for "No compatible hardware found" error when installing Catalyst drivers for ATI Radeon HD 4000, 3000, 2000 Series AGP products
• Motorola Releases Droid Specs, Photos Online
• Western Digital WD TV Live HD Media Player Video Review
• Engineers create fingernail-size chip that holds 1TB of data
• ATI Catalyst 9.10 reference drivers for windows. (Here's release notes PDF)
• Windows 7 default user account control worries experts
• Microsoft offering on-site Xbox 360 repair at new stores
• Blu-ray add-on not coming to the Xbox 360
• mccain Moves to Block FCC Net Neutrality
• Net Neutrality Foes: What If The 'Bad Guys' Are Right?
• Fresh Windows install? Ninite streamlines apps
• How to Prep for an XP-to-Windows 7 Upgrade: FAQ