MIDEAST STOCKS-Egypt continues tumbling on FX worries, Saudi almost flat

DUBAI, Nov 10 (Reuters) - Egypt's stock market continued to tumble early on Tuesday because of speculation about a possible currency devaluation or a rise in local interest rates. Most Saudi Arabian stocks opened barely changed. The Egyptian index skidded 2.9 percent to 6,929 points, adding to a 2.8 percent drop on Monday and a 2.6 percent slide on Sunday. On Monday, it broke technical support on its October low; its next support is at the September low of 6,921 points. Strong U.S. economic data