Concerns about children’s privacy and security have prompted the closure of one education technology start-up backed by $100m from supporters including Bill Gates’ foundation. Read more

Square, the payments processing start-up, is looking for new users for its credit card device among the US’s growing Latino community.

The company, co-founded by Twitter’s Jack Dorsey, is today unveiling Spanish language support and software in hopes of tapping into the purchasing power of America’s more than 50m Latinos. Read more

Payments start-up Stripe is betting that retailers will leap at the chance to sell to an international audience, if only a company like Stripe were there to make it easier.

The company, run by Irish brothers John and Patrick Collison, is launching a feature allowing sellers who use its platform to price their goods in more than 130 currencies. Stripe takes a fee for the conversion, but handles the paperwork and bank transfers that can make cross-currency a hassle. Read more

The world’s most popular smartphone range is finally available to subscribers of the world’s biggest mobile carrier. Yes, the iPhone today went on sale to China Mobile subscribers.

But it does not come cheap. It is not quite Brazil prices (R2,799, or US$1,184 for the 16GB iPhone 5s from the Apple store) but iPhone in China is more expensive than it is in the US, at Rmb 5,288 ($872) versus $649 for the iPhone 5S 16GB. Read more

China’s mountainous Guangxi Zhuang Autonomous Region has little of the wealth and fast development of the places in China foreigners have already heard of, but on one key measure of economic development, Guangxi is winning — the growth rate of spending online.

Online shopping throughout China is expanding fast – far faster than the US and Europe – but it’s growing particularly fast in China’s poorer regions like Guangxi, where malls are sparser and the number of people getting online for the first time is greater. Read more

Google will double its investment in a new data centre it is building in Taiwan as internet use in Asia rockets beyond what the US internet group predicted a few years ago when it first planned the site, one of its first two data centres in Asia.

The search company already invested $300m in the massive centre on a flat plain outside a city in central Taiwan, and says it will double that in the next stages of the data centre’s development. Read more

A Beijing customer buys two new iPhone 5s

A customer celebrates buying two new iPhone 5s at the Wangfujing flagship store in Beijing

When Xiaomi, a popular Chinese smartphone maker, overtook Apple’s market share in China the second quarter, the shift prompted a double take by consumers and investors who had never heard of the small but growing brand.

The ascent was short-lived. Apple’s two new iPhones have proved popular in China, enabling the US company to shoulder past Xiaomi in the market share rankings for the three months ended in September.

But Apple and everyone else are still miles behind the clear market leader — Samsung, which now has a fifth of China’s smartphone market, up from 14 per cent in the third quarter of last year. Read more

Rihanna gives away a personalised HTC phone on stage

How badly is smartphone maker HTC doing?

By many measures, very badly. October sales are down 13 per cent year on year. Revenue next quarter could be as low as NT$40bn, a third less than the same quarter last year and lower than analysts’ expectations. And after reporting its first ever quarterly operating loss as a company in the third quarter, it shows no sign of returning to profit in the fourth.

But one measure in particular, released today with its full third quarter results, shows the Taiwanese company’s travails — its accounts payable. That measures how long it is taking the company to pay its bills to its suppliers, who make the parts of its phones. Read more

Taiwan smartphone maker HTC will sell back its remaining stake in headphone and audio tech company Beats Electronics as the Taiwanese group tries to turn around its shrinking core phone business. Read more

Environmentally conscious or just clumsy people buying a smartphone are better off with a new Samsung or Motorola than with one of the new iPhones.

A new ranking from iFixit, a group that specialises in tearing apart phones to figure out to repair them, looks how easy it is to fix the top smartphones on the market. Read more