After collaborating with Asus to produce the wildly successful Nexus 7, Google is rumored to be teaming up with Samsung to produce another game-changing Nexus tablet. Anticipated to flaunt an unprecedented 2560x1600 resolution display, the tablet will allegedly be announced on October 29 as the Nexus 10.

This comes with the usual "take with a grain of salt" disclaimer, but here are some reasons to think the Nexus 10 will come to fruition:

• Last year almost to the date, Samsung demoed a 10.1" 2560x1600 LCD display, so the company definitely makes them.
  
• A confidential source (likely a Google employee) evidently told The Next Web about a video shown at a weekly all-hands "TGIF" that details the devices to be announced on October 29. These are said to be the Nexus 4 smartphone manufactured by LG, two 32 GB versions of the Nexus 7 (one with a 3G/HSPA+ radio), and a 10.1-inch 2560x1600 resolution Nexus tablet by Samsung with the codename "Manta."
  
• Android Police reported information in its traffic logs indicating three different Android 4.2 builds, each running on a "Nexus 10":
  

  Quote

  Linux; Android 4.2; Nexus 10 Build/JOP14
  Linux; Android 4.2; Nexus 10 Build/JVP15B
  Linux; Android 4.2; Nexus 10 Build/JOP12D
  Yes, these UA strings can be faked, but Android Police founder Artem Russakovskii closely examined those server logs, including the IP addresses from which the logged activity originated, and found nothing to indicate a hoax. Additionally,...
  
• 
  French blog Galaxus posted a photo allegedly taken from a 5 MP camera whose EXIF data indicates a Nexus 10 with 2560x1920 resolution (which does conflict with most reports claiming a 2560x1600 resolution, so take it for what you will).
  
• Richard Shim, an analyst at NPD DisplaySearch who called the 2012 Kindle Fire lineup two months before it was announced, told CNET that a high-end Samsung device would be co-branded by Google as the Nexus 10, and he confirmed the 2560x1600 resolution display.

<<<PURE SPECULATION ALERT>>>

The Nexus 10.1 might be powered by the next-generation Mali T-604 GPU and the Exynos 5250 CPU featuring the new ARM Cortex-A15 architecture. If so, it will be the first ARM Cortex-A15 processor to hit the tablet/smartphone market. No doubt you're wondering where I would get such a crazy idea from, especially since I don't have a secret source who has 'leaked reliable information in the past'. Here goes:

• There is already an Exynos 5250-powered Chromebook that has been announced, so the new chipset is definitely in mass production.
  
• There is also a device called the Samsung GT-B9150 that has appeared on the GLBenchmark site sporting Android 4.1.1 Jelly Bean and a Mali T-604 GPU, so the chipset has already been built into an Android device as well (the resolution indicated on the benchmark site and the hardware keyboard alluded to by the "B" in GT-B9150 make it unlikely that this is the Nexus 10.1).
  
• 
  There are only two GPUs I know of (other than that in the Apple iPad 3) that could possibly power a 2560x1600 display: the brand-new Adreno 320 GPU included in the quad-core Snapdragon S4 Pro chipset, and the Mali T-604 included in the Exynos 5250 chipset. I ran a comparison test on the GLBenchmark website between the Apple iPad 3, the LG Optimus G (the Adreno 320 GPU), the Galaxy Note 2 and Galaxy S III (Mali 400 GPU), as there were no devices with the Mali T-604 that I could compare them to. For those few tests for which data was available on the Optimus G and the Galaxy Note 2, I was able to discern a pattern. While the Adreno 320 GPU easily outperforms the Mali 400 on the Galaxy Note 2 and the Galaxy S III, the PowerVR SGX543MP4 on the iPad 3 easily outperforms the Adreno 320. Actually, the impression I got from reading this article on Anandtech is that the Mali T-604 might be the only GPU capable of pushing 2560x1600 resolution.
  
• More on the subject of the Exynos 5250/Mali T-604 combo specifically supporting 2560x1600 resolution:
  
  The Exynos 5250 supports embedded DisplayPort (eDP) interface up to WQXGA resolution (2560×1600), which is handy for Samsung since they are also working on a WQXGA 10.1″ LCD Panel for tablets. This interface is also compatible with PSR (Panel Self Refresh) technology which instructs the application processor not to send image data to the LCD panel when the set is displaying still image in order to reduce power consumption. Read more: http://www.cnx-softw.../#ixzz29zyu7Np4
  - CNXSoft

As I indicated above, this is pure speculation on my part, but I believe there's a certain pattern of logic behind it. If I had to quote a percentage of likelihood that the Nexus 10.1 will be powered by the Exynos 5250/Mali T-604, my guess would be about 40% (this certainly isn't the first time we've been teased with the Exynos 5250 only to be disappointed).

To make sense of this mixture of wishful thinking, educated guesses, corroborated rumors and supporting facts, I present the following equation: