Netflix (NASDAQ:NFLX) launched its streaming service for the U.K. and Ireland. The company is offering the service for 5.99 pounds/month in the U.K and 6.99 euro/month in Ireland, and has established a long list of content partners. Concerns exist about Netflix’s licensing costs, as well as competition from Amazon’s (NASDAQ:AMZN) Lovefilm subsidiary.

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GameStop (NYSE:GME) said it expects same-store sales for the fourth quarter and full-year 2011 to be down 1% to 2%. This expectation comes after sales of new game titles only slightly offset a sharp decline in hardware sales over the holiday period. The firm notes that it retired the remainder of its long-term debt and starts off 2012 with a debt-free balance sheet.

Apple’s (NASDAQ:AAPL) shipments are believed to have held steady, thanks in part to a 20% quarter over quarter shipment increase for the MacBook Air. The notebook relies on flash memory for storage instead of a hard drive. Digitimes Research estimates global notebook shipments fell 8.7% quarter over quarter in the fourth quarter, typically a seasonally strong quarter, thanks to the hard drive shortages caused by lost Thai manufacturing capacity.

Groupon (NASDAQ:GRPN) and Deutsche Telekom plan to cooperate on mobile Internet businesses, though the details are a bit vague. Deutsche Telekom says it’ll “start some services and activities with Groupon in the coming months.”

Apple’s (NASDAQ:AAPL) share of the United States smartphone market rose in the fourth quarter. It jumped from 26% to 43%, mostly at the expense of Android (NASDAQ:GOOG), which slipped from 60% to 47%, and Blackberry (NASDAQ:RIMM), which continues its slide hitting 6%, compared to 8% in the third quarter and 19% a year earlier

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