CREATE TABLE table_46729 ("Model" TEXT, "Memory  (  RAM  ) " TEXT, "Storage  (  flash  ) " TEXT, "Operating system version" TEXT, "Memory card" TEXT, "Weight ,  dimensions" TEXT, "Retail availability" TEXT)

How much memory (RAM) does the Maemo 5 operating system have?
SELECT "Memory ( RAM )" FROM table_46729 WHERE "Operating system version" = 'maemo 5'
SELECT "Memory ( RAM )" FROM "table_46729" WHERE "Operating system version" = 'maemo 5'