CREATE TABLE table_16676 ("Source" TEXT, "Date" TEXT, "Method" TEXT, "iOS" TEXT, "Android" TEXT, "BlackBerry" TEXT, "Symbian / Series 40" TEXT, "Bada" TEXT, "Windows" TEXT, "Other" TEXT)

On which dates was the value of Bada 0.05%?
SELECT "Date" FROM table_16676 WHERE "Bada" = '0.05%'
SELECT "Date" FROM "table_16676" WHERE "Bada" = '0.05%'