A roundup of the best products and most interesting stories this week from Reviewed.com.

The letter, due to be published on Tuesday, admits the firm is facing "challenging times", but adds that it is taking measures to tackle them.

BlackBerry announced last month that it plans to lay off a shocking 40% of its global workforce by the end of 2013. The first round of cuts began this week, with 300 employees let go.

Chinese e-commerce company Alibaba Group Holding has decided not to list its shares in Hong Kong, but has not yet committed to listing on any other exchange, including the New York Stock Exchange, CEO Jonathan Lu told Reuters on Thursday.

Its forecasts also indicate potentially slowing profit growth at its mobile business-a signal that its run of record results is under threat by rising competition and lower-margin phones taking up a bigger proportion of sales.

Samsung's upcoming Galaxy Gear smartwatch is seen as an extension of the smartphone, but research is under way to see how the wearable device could work with electronics such as TVs.

Facebook has so many users - more than a billion, or roughly the population of India - that squeezing them all into one Web page seems almost impossible. And yet someone has done just that.

Foxconn Technology, a subsidiary of the world's largest electronics contract manufacturer Hon Hai Precision Industry, will likely begin construction of its factory in Indonesia in the second half of 2013, a minister has said.

For a few hundred dollars, a US consumer can visit a local telecoms dealer and pick up a device manufactured by Samsung Electronics. But buying shares of the Korea-listed technology giant? Not so easy.