Shares of some top telecom companies were down at the close of trading: AT&T Inc. fell $.21 or .6 percent, to $35.96.
Yahoo says it will buy Flurry Inc., which helps other companies make apps and design mobile ad campaigns.
Shares of some top telecom companies are down at 1 p.m.: AT&T Inc. fell $.07 or .2 percent, to $36.10.
The Nokia X phones that Microsoft discontinued this week blend two rival operating systems, but leave out the best of each.
Microsoft announced Thursday that it will cut up to 18,000 jobs, or about 14 percent of its staff.
BlackBerry shares are dropping after details emerged of a partnership between two of the world's biggest technology companies — Apple and IBM — that will cater to business customers.
Shares of some top telecom companies are up at 1 p.m.: AT&T Inc. rose $.24 or .6 percent, to $36.48.
Shares of some top telecom companies are up at 10 a.m.: AT&T Inc. rose $.17 or .5 percent, to $36.41.