Today in Tech: Google’s Flipboard killer by JP Mangalindan @FortuneMagazine September 16, 2011, 11:54 AM EST E-mail Tweet Facebook Google Plus Linkedin Share icons Fortune’s curated selection of newsworthy tech stories from the last 24 hours. Sign up to get the newsletter delivered to you every day. * Google GOOG is reportedly developing a competitor to the popular curated news app, Flipboard, with a project dubbed “Propeller.” Sources tell Robert Scoble that it’s “mind-blowing good.” (All Things D and Robert Scoble via Google +) * BlackBerry-maker Research In Motion RIMM reported lower-than-expected revenues and profits for its latest quarter, telling analysts it expects challenges to continue. Most notable: the company only shipped 200,000 units of its touted PlayBook tablet, significantly less than estimates of between 600,000 and 700,000. (The is my next and Business Insider) * Yahoo YHOO EVP Ross Levinsohn says Yahoo is doing better than many think and that an AOL merger isn’t likely. (paidContent) * Why great social networks steal. (Slate) * TechCrunch founder and ex-AOL employee Mike Arrington plans to start a new blog about startups and journalism. He won’t be hiring other writers. (The Wall Street Journal) * Did Box.net spurn a $500 million acquisition bid? (VentureBeat) Don’t miss the latest tech news. Sign up now to get Today in Tech emailed to you each and every morning.