An Amazon Prime subscription could cost you $20 to $40 more per year sometime soon.
Market-research firm IDC says that tablet shipments grew 28.2 percent in the fourth quarter of 2013. That's a far cry from the 75.3 percent growth in sales during the 2012 fourth quarter.
The service would compete with cable and satellite pay TV services if it goes ahead.
The company blames delivery companies for the delays