Fortune’s curated selection of tech stories from the last 24 hours. Sign up to get the round-up delivered to you each and every day.
* Apple CEO Tim Cook spoke at the Goldman Sachs Technology and Internet Conference in San Francisco yesterday, addressing topics like working conditions in Chinese Foxconn factories, the runaway successes of the iPhone and iPad, and emerging markets. Cook also revealed there are now 100 million iCloud users — 15 million more than there were just 21 days ago. (Fortune and The Next Web)
* Ad Age reports Apple (ZNGA) has dropped the minimum amount it charges advertisers for iAd again from $500,000 this time to just $100,000. (Ad Age)
* Zynga (ZNGA) reported a loss of $435 million during the company’s fourth quarter despite a 59% increase in sales to $311 million. (The Wall Street Journal)
* Amazon (AMZN) reportedly has fewer Amazon Prime users than previously estimated: between 3 and 5 million instead of 10 million. (Bloomberg)
* Former Sun Microsystems CEO Jonathan Schwartz’s latest endeavor is CareZone, an online solution that allows its users to privately store and share health-related information about family members (or themselves) with others. CareZone is self-funded with less than $2 million of Schwartz’s money. (CareZone)
* A look at how much user data mobile apps have access to on your phone. (The Verge)
* How developers are shaping the future of music. (Read Write Web)
* Tech blogs are abuzz about a new mobile to-do list app called Clear.
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