NEW YORK ( TheStreet) -- Research In Motion ( RIMM) was a big loser in premarket trading on Friday amid ongoing uncertainty about the handset maker's long-term prospects. Shares of Research In Motion were down 5.38% to $11.25 before market open, despite the company's recent efforts to show off its forthcoming BlackBerry 10 operating system. On Thursday, RIM also launched its BlackBerry 10 Ready Program, which aims to prepare enterprise customers for the operating system's debut in late January. RIMM shares closed down 0.42% during Thursday's trading. Cisco ( CSCO) shares crept up 0.31% to $19.54 in premarket trading on Friday ahead of the company's financial analyst conference. The networking giant's analyst event, which TheStreet will be attending, kicks off at 8 a.m. EST in New York. Apple ( AAPL) shares slipped 0.4% to $547 in premarket trading. The consumer tech giant's stock closed up 1.57% on Thursday after Deutsche Telekom announced that its T-Mobile USA subsidiary will offer Apple products next year. Facebook ( FB) shares were flat in premarket trading at $26.97. Investors will also be keeping a close eye on Palo Alto Networks ( PANW) on Friday. The security specialist swung to a loss of $3.5 million after market close on Thursday, weighing heavily on its shares in extended trading. Palo Alto Networks' adjusted profit of 4 cents a share, however, came in above Wall Street's estimates. --Written by James Rogers in New York. Follow @jamesjrogers >To submit a news tip, send an email to: firstname.lastname@example.org.