Social music sharing app Nwplyng shutting downOne in 10 WhatsApp users in India; company claims half a billion monthly active users globallyLocation-based mobile marketplace Tradus.com adds groceries to its platformZomato adds a social layer to restaurant discovery, looking to expand to 22 countries by 2015 endCashback & couponing venture Cashkaro eyes global expansion, looking to break even by 2015 endMicrosoft & HP launch tablet targeted at higher education for Rs 29,999; device comes embedded with Pearson educational content