Londoners react to 'bombshell' Uber ban

 decision to deny Uber a license has produced howls of protest from jilted fans and wild cheers from critics.

Twitter (TWTR, Tech30) and Facebook (FB, Tech30) were flooded with comments after the decision was announced on Friday. Text messages flew between friends and tabloid editors prepared to blast the news across their front pages.

"UBER AND OUT!" read the headline on London's Evening Standard.

Transport for London sent shock waves through the capital city Friday morning, announcing that it would not renew Uber's license because of concerns over its approach to reporting serious crimes and other issues.

Uber, which has 21 days to appeal the ruling, quickly blasted an email to users asking them to sign an online petition that pleads with London's mayor to "save" the app. It received over 181,000 signatures in about four hours.

"I don't believe black cabs should run London like a cartel," wrote Uber fan James Pace, who posted his message alongside the petition. "If Uber has problems, let's resolve them not just ban them."