MINYANVILLE ORIGINAL The Nasdaq Composite Index (INDEXNASDAQ:.IXIC) traded mostly flat today rising 0.15% to 3 026.50 at 2:45 p.m. EST on cautious optimism about deals on the fiscal cliff and positive news out of Europe.   It was a strong day for Research in Motion (NASDAQ:RIMM) which rose 4.44% to $13.16 on high volume as the new BlackBerry mobile device wowed critics although some analysts are warning that the device is up against stiff competition. Netflix (NASDAQ:NFLX) is also facing competition in the form of Coinstar (NASDAQ:CSTR) but nevertheless rose 7.50% to $92.48. Coinstar also did well rising 3.78% ...