This is what we are dealing with when it comes to what may or may not be behind the Nexus(Not including what has been leaked today):
[TABLE="class: cms_table_grid, align: center"]
[TR]
[TD]
Rumored Specs Over Last 2 Months
November Release
Samsung Device
ICS at Launch
Majority say its Coming to all major carriers/Some think Verizon will never have a pure Google phone
4.65-inch 1280×720 Super AMOLED display, 5MP camera
metal chassis
curved screen (a la Nexus S)
looks similar to the Sprint variant of the Galaxy S II, with a round-edged body, but also similar to the Nexus S with a curved screen
Samsung's Exynos dual core CPU clocked at 1.5GHz
Some feel that the Exynos chip was to late to the game to make it into this phone
1gb RAM
16gb internal memory (with sd card slot)
8.8mm thick
metal body
2000mAh battery
weighing in at around 130g-140g
Is NOT the GT-I9250 (the 9250 has been certified as a GSM phone)[/TD]
[TD]
GSM Leaked Specs 10/6/11
dual-core 1.5GHz
dual-core GPU from Imagination.
PowerVR SGX543MP2(the same GPU found in the iPad 2 (and quite probably on the iPhone 4S as well))
8-megapixel, full 1080p HD video-shooting camera with some sort of an improved sensor.
2050mAh one
LTE-enabled
dual-mode GSM/CDMA radio
4.65-inch, 1280x720 pixels screen[/TD]
[TD]
BGR's "Confirmed" Specs 10/6/11
Android 4.0 Ice Cream Sandwich
9mm thin
4.65-inch 1280 x 720-pixel Super AMOLED HD with curved glass
TI OMAP 4460 dual-core Cortex A9 processor clocked at 1.2GHz
1GB of RAM
32GB of built-in storage
5-megapixel camera on the back, 1.3-megapixel in the front
1080p HD video capture support
LTE/HSPA depending on carrier
Wi-Fi a/b/g/n
NFC
1,750 mAh battery
[/TD]
[TD]
Random Google+ Guy 10/6/11
Display: 4.65-inch HD(1280x720) Super AMOLED
Camera: 8 megapixel (flash)/2 megapixel on the front
Battery: 1850 mAh
Value added features: 1.5GHz dual core AP, embedded 16GB memory
Bluetooth 3.0 HS, WiFi a/b/g/n
[/TD]
[TD]Android Police Source 10/12/11
OMAP 4460 processor rated at 1.5GHz, model confirmed; pending exact clock speed
32GB internal storage
no SD card slot (like the Nexus S, argh)
LED notification (unlike the Nexus S)
1GB RAM
LTE
NFC
1080p HD recording @30fps
5MP rear camera
possibly some sort of a time lapse feature
Ice Cream Sandwich confirmed as Android 4.0
Internally, known as Tuna/Tuna 4G as well as Toro (product/device)
Galaxy Nexus name
large screen - wasn't able to confirm the exact size[/TD]
[/TR]
[/TABLE]