I know where your coming from, and it took me a log time to come to the conclusion. The most important question is the software:
Android is definently reaching its limits, its aimed at smartphones and does not support stuff you expect on a large computer.
Ubuntu is great but lacks that user friendly and is slow unless its UNR.
Moblin is dead, MeeGo has great potential. The thing is MeeGo has not been released so it is a software "in developing" and could stuff up.
I get it Windows 7 on an Atom is horrid but there are room-for-improvements really. And I prefer the potential but shiite Win7 over Android for a device should exceed what I can do on my smartphone.

I've thought about it and deduce battery life is okay with the N450.
If you are expecting to carry the device to work then your supposed to take that keyboard attachment to double battery life over 9 hours which is plenty.

No its not a gaming tablet, but a tablet with "low-end gaming" possibility. Plus why nubs when you have keyboard & mouse??

Keen eyesight. That actually serves an important role!
Having the USB placed at those ends (mirror-image) means that the accessories you attach (plug via USB) can be attached in 2 ways.
So the dual screen for instance can serve the purpose of a game like "Guess Who" or "Battleships" when attached the other way round, folded into 90degrees and placed on a desk. Or other things such as infitasking (multitasking with 2 people !!!).
And also the keyboard, if attached in the backwards orientation, it hides underneath the tablet, transforming your tablet into a tablet but still offering the extended battery life.
But the true aim of that design is to get the tablet fold outwards (as seen as "Max") to make the accessory into a kickstand. Benefits such as when showing slideshow/photos (digital frame) on your coffee table.

I'll do so asap (when my net speed increases again ... over my Gb limit)

[/QUOTE]

sarcasm? 4 Gigs !!! is plenty already. For the Atom, the CPU is the bottleneck so after 1 or 2 Gigs, additional RAM wont make much (if any) performance increases. And you suggest 8 Gigs! Lolz

Ok I've done a re-revision on the Tablet Concept.
Here are the new images:
(notice the difference?)





The difference is the placement of the charger and HDMI dock.
Why?
Since when the keyboard/dual-screen is plugged in, it also powers the tablet their is not much need to plug in the charger. But if you want to game on a large TV, the HDMI slot was inhibited by the keyboard, but now it isn't.

New things I've added to this concept tablet.
The first thing is the addition of a custom built-from-scratch UI framework that sits on top of Windows 7. This makes UX places things logically and gets rid of the windows transparency (performance & battery life), arranges things more obviously for the user, makes things finger-friendly and optimisez to make things run a little faster (think Ubuntu vs Ubuntu Netbook Edition, same OS but one is faster).
So each tablet comes with its own Windows-Twist, but their is the possibility to switch to manila (plain) Windows 7 following a restart.

Here are the specs of the different editions of Tablets:

--------TABLET BASE-MODEL
$600 July 2010 (becomes $600 Nov'10, $500 Feb'10)

Intel Atom N450 (1.7GHz Solo)
2GB DDR2 RAM
ATi HD 4330
128GB SSD
10" (1280x720) LED-LCD
Capacitative Multitouch
Webcam, HDMI, Wifi, Bluetooth, Loudspeaker, Microphone

7.8h (normal use)
14.4h (normal use with extended battery)
8.7h (high-performance with extended battery)

--------ACCESSORIES

Detachable Keyboard: Sep 2010 $100
LED Dual-screen: Nov 2010 $200
S-AMOLED Dual-screen: Jul 2011 $300

--------TABLET PRO
$750 Nov 2010 (becomes $750 Feb'11, $700 Jul'11)

Intel Core2Solo SU3500 (1.4GHz Solo)
3GB DDR2 RAM
ATi HD 5450
256GB SSD
10" (1280x720) LED-LCD
Capacitative Multitouch
Webcam, HDMI, Wifi, Bluetooth, Loudspeaker, Microphone, G-sensor, Vibration, FM-radio, aGPS, digital compass, 3G

7.5h (normal use)
14.1h (normal use with extended battery)
8.6h (high-performance with extended battery)

--------TABLET BASE-MODEL ver2
$550 Feb 2011 (becomes $500 Jul'11)

Intel Atom Z560 (1.9GHz Solo) ...fanless
2GB DDR2 RAM
ATi HD 4330
128GB SSD
10" (1280x720) LED-LCD
Capacitative Multitouch
Webcam, HDMI, Wifi, Bluetooth, Loudspeaker, Microphone, G-sensor, Vibration, FM-radio, aGPS, digital compass

8.8h (normal use)
16.3h (normal use with extended battery)
9.8h (high-performance with extended battery)

--------TABLET EXTREME
$900 Jul 2011

Intel Core i7 640-UM (1.2GHz Dual)
4GB DDR3 RAM
ATi HD 5650
512GB SSD
10" (1280x720) S-AMOLED
Capacitative Multitouch
Webcam, HDMI, Wifi, Bluetooth, G-sensor, Vibration, FM-radio, Loudspeaker, Microphone, aGPS, digital compass, WiMaX

5.2h (normal use)
9.6h (normal use with extended battery)
5.7h (high-performance with extended battery)

What do you guys think?
Which of those tablets would you willingly pay for (at the provided price)?
Any criticism is welcomed!

I think you should stop living in the fantasy world.

That's not constructive criticism, that's a pointless insult. Find another place to vent your hostility.

Thank you for greeting me, Maemo Greeter Coordinator.

Since this is somewhat fantasy, why not do away with the unsightly and frankly not very function or aesthetic and very much in the way USB connections between addons and the main tablet, and use 60 ghz wireless and network services to manage addons.

Sorry, not very functional USB?
I beg to differ, without USB a device becomes very limited or unpractical.

Oh sorry I've misread.
You're right, it is possible to do Bluetooth/Wifi/60Hz signal for the keyboard.

Well that can be the option of the add-on, but it is my fault for not giving the proper explanation.
The USB allows the data transfer + charges the tablet from the battery in the keyboard.
I mean why waste that space right?

Well the options are:
1 USB connection for connection + power
1 USB for power + 1 wireless connection
1 Power connection + 1 wireless/USB connection

(I thought the first was the better because it is power efficient and the simplest: just plug and play)

Thank you for the feedback !!

I just really, really, really don't like the usb sticking out of the side just to attach an addon. Maybe a custom usb connection built into the hinge?

Hmmm.
Let me do some thinking, thank you btw!

I can appreciate ui and design ideas that's far out there to explore new concepts..

But when the fantasy involves specific hardware specs with costing and availability information that's not necessarily based on real world information, I fail to see the point of this exercise.