Sources: Apple's new iPad makes the leap to 1GB of RAM  —  There were a lot of hardware specs bandied about at this morning's iPad event: an A5X processor with quad-core graphics, a 2048 x 1536 Retina Display, and LTE.  One piece of information that wasn't mentioned, however, was RAM.

U.S. Warns Apple, Publishers  —  Justice Department Threatens Lawsuits, Alleging Collusion Over E-Book Pricing  —  The Justice Department has warned Apple Inc. and five of the biggest U.S. publishers that it plans to sue them for allegedly colluding to raise the price of electronic books, according to people familiar with the matter.

Former Microsoft exec Ozzie: 'Of course we're in a post-PC world'  —  Speaking at the GeekWire Summit, Microsoft's former chief software architect also sheds little new light on his startup, Cocomo.  —  Ray Ozzie answers a question at the GeekWire Summit in Seattle

Nvidia on Apple's iPad A5X graphics claims: Show us the benchmarks  —  Summary: Apple's A5X allegedly has 4X the performance of Nvidia's Tegra 3 chip, but without benchmarks and footnotes the claims ring hollow.  —  Apple took direct aim at Nvidia's Tegra 3—a processor for a new batch of superphones—as it launched its latest iPad.

With $1 Million On The Line, Chrome Finally Cracked In Hacking Competition  —  It took four years and possibly the biggest reward a software company has ever offered for information about its own security flaws, but Google finally found what it was looking for: A few hackers willing and able to dismantle its browser in public.

Apple TV vs. the new Apple TV (2012): what's changed?  —  The Apple TV might still be a hobby, and thus not the main event at Tim Cook's Apple presentation today, but Apple's participation in the living room has had its fair share of rumors, speculation and dreams.

Holey chip!  IBM drills holes into optical chip for terabit-per-second speed  —  IBM researchers have built a prototype optical chip that can transfer a terabit of data per second, using an innovative design requiring 48 tiny holes drilled into a standard CMOS chip, facilitating the movement of light.

iOS 5.1 Now Available with Japanese Siri, Camera Enhancements, and More  —  Following Apple's announcement that iOS 5.1 would debut today, the software update is now available for existing iOS devices.  Among the notable additions are Japanese language support for Siri, camera enhancements …

Selling Online Products by Subscription Is All the Rage  —  After Alex Zhardanovsky sold his online ad company, AzoogleAds, he went looking for a new business concept.  His search took him from skin care to weight-loss products to prize giveaways.  The answer that finally came to him — pet food — was inspired by sheer inconvenience.

A completely redesigned Google Search App for Windows 7.5 phones  —  (Cross posted on the Inside Search Blog)  —  Windows Phone owners can now get easy access to the Google Search App, available in the Windows Phone Marketplace.  Check out these features which help you get useful results fast:

From scooters to servers: The best of Launch, Day One  —  Rafe's top picks from the big startup conference include a service to help you get financial aid, one to get you in shape, and cloud storage company with no servers.  —  The Space Monkey storage pod lives in your house.

AT&T Said to Hold Talks With Cerberus on Sale of Yellow Pages  —  AT&T Inc. (T) is in talks to sell a majority stake in its Yellow Pages unit to Cerberus Capital Management LP in a transaction that values the entire business at about $1.5 billion, said two people familiar with the matter.

Major Changes In Facebook's Amended S-1: Mobile Ads, Zynga, Yahoo Patents, Credit  —  Facebook today filed an amended S-1 to IPO that describes new risks based on its launch of ads for mobile, Zynga's standalone gaming platform, and a patent dispute with Yahoo.