Just to be clear. Zenithink produce the board and are mass producing the 256MB RAM, 2G NAND models now. Third parties (such as wiithink) should be shipping those out as of Friday or maybe next Monday. Zenithink are also responsible for the base build of Android and WinCE.
WiiPad just resell it. Put their stamp on the back and maybe makes some changes to the firmware before releasing it out (like adding qq or startup splashscreen). If WiiPad can sell enough units, they can get discounts and be able to choose special configurations. So the board supports 512MB and different NANDs. Or also the guarantee that that can clock up to 1.4GHz (maybe the cpu is rated 1GHz, but can be factory tested to higher Hz). So WiiPad could release a 1.4GHz, 512MB RAM version if they wanted.
So why did they choose 1GHz/256MB? Probably because it is an iPad clone. Anyway, I got a A105 from jiongtang which is the same unit. I'm told it is shipping today from HK, but with WinCE. I put together this comparison on the forums.
Code:
A105 iPad
OS Android 2.1 / WinCE 6.0 iOS
Weight 650g 680g/730g
dimensions 270 x 180 x 15 242.8 x 189.7 x 13.4
Processor 1GHz Cortex A8 1GHz Cortex A8
RAM 256MB + 128MB VRAM 256MB
3G Attachable Optional
Video 3D chip with 128MB VRAM PowerVR SGX 535 GPU
Touch Resistive Compacitive
Wifi b/g b/g/n
Bluetooth Attachable 2.1
LCD 10.2" TFT 1024x600 9.7" LED 1024x768
Shaky? G-sensor(android) accelermeter 3-axis
USB Host and OTG Via dock
Ethernet mini-connector Via dock
TV-out no Via dock
Camera webcam no
Batt life video without wifi or 3g (7h) video without wifi or 3g (10h)
Storage 2GB 16GB 32GB or 64GB
Card reader TF (up to 32GB) no
Speakers 1wx2 stereo mono speakers
Let me know if I got anything wrong. One very important thing to note is the 128MB of VRAM that you wont find on the Android. If you have a SmartQ V7/V5, you will know that the video consumes a huge ammount that can only be allocated at startup. With the 128MB already allocated, you can get better video performance and no need to allocate. I don't think the iPad has VRAM. So performance will be nicer, especially when the ultra efficient Android 2.2 is out.
. Hopefully Zenithink don't screw up the build like the telechips did with their Android 2.1 build. (It constantly is polling for a phone module killing the performance and battery.)
http://www.zenithink.com/en/product_view.asp?id=228
My biggest concern is the buttons. It only seems to have one button on the board, with no pins for anything else. We can see from the original Witstech android board that this is a bad combination without good software. Android needs atleast three buttons to use easily. This makes me think that the plastic mold was created for a WinCE user. I've seen a video of the WinCE which looks really nice. The "orphan m16" video on youtube shows the current android build with a WinCE build playing a HD video.
I hope this info has been helpful. I find it hard to get information about this because all the third parties are pretending it just belongs to them alone.