Apple CEO Heads to Washington to Face Tax Avoidance QuestionsSenator Carl Levin of Michigan Blasts Apple Ahead of Tuesday HearingNYT: Apple Accused of Nothing Illegal in Tax-Avoidance InvestigationSamsung Announces 276 PPI Display PanelForrester: Macs Command Computers Among Loyalists and Devotees (Though Most Consumers are Free Radicals)AT&T to Allow FaceTime Over Cellular for Unlimited LTE Customers by Mid-June; 3G by End of YearF-Secure: 91-Percent of Mobile Malware Target at Android with the Rest Targeting SymbianMacRumors Says Other Rumors Say Trials Are Underway for iWatchKodak Launches Pricey Scanner Aimed at Mac Users in North America and EuropeGuy Steals Three iPhones from Dallas-Area Apple StoreApple Reportedly In the Running to Provide 10.6-Million iPads to Turkish Education InitiativeHeadcast: Put Stephen Fry in Your Pocket, Then Take Him Out and Play with Him