Matt Brian, The Next Web:

Google has also been work­ing with Samsung to launch a 10-inch tablet, con­firm­ing leaks which sug­gested Google had teamed up with the Korean man­u­fac­turer for another device. Our source tells us that inter­nally the tablet goes under the name “Codename Manta”, runs Google’s new Android 4.2 oper­at­ing sys­tem (pre­vi­ously referred to as Key Lime Pie, but is set to retain the Jelly Bean brand­ing), and will offer a 2560×1600 pixel (16:10) res­o­lu­tion, which we believe will offer around 300 pix­els per inch (PPI) com­pared to the new iPad’s 264 PPI.

The rumored LG-built Nexus 4 smart­phone based on the Optimus G, the ASUS-built Nexus 7 tablet, and now a rumor for a Samsung-built Nexus 10 tablet. Nexus 4, Nexus 7, Nexus 10. Makes sense.

The dis­play on the 10.1 inch (I’m guess­ing it’ll be a 10.1-inch PLS LCD) sports a 2560×1600 pixel for­mat good for a res­o­lu­tion of 300 ppi. I like. Here’s what I hope to see: in-cell touch, cover glass lam­i­nated to the LCD, thin­ner and lighter than the iPad (3), WiFi and LTE ver­sions, and start­ing at US$499.

While Apple is poised to attack the smaller tablets (7-inch Nexus 7, 7-inch Kindle Fire HD, 7-inch Barnes & Noble Nook HD, and Samsung Galaxy Tab 2 and 7.7), Google is coun­ter­at­tack­ing Apple at the larger 10-inch tablet seg­ment. October is going to be an excit­ing month.

Update 2012.10.29: Ron Mertens sug­gests the Nexus 10 will sport a 10-inch 2560×1600 IGZO LCD devel­oped by AUO. A 10.1-inch 2560×1600 LCD has a res­o­lu­tion of 299 ppi, which is higher than the 264-ppi iPad (3).