Apple will miss the lower end of its own revenue guidance figures of $41-43 billion for the current quarter by more than half a billion dollars, claim Citigroup analysts cited by Business Insider. CNET has more on the research note, which says that reduced orders in Apple's supply chain suggest softening demand for both iPhone and iPad, and claims that there is "limited evidence" of an imminent low-cost iPhone.In conducting our regular field work with the hardware supply chain, we again find evidence of reduced demand to Apple's suppliers for iPhone 5 related components. While production does not directly translate to sales (for example, we estimate Apple finished 1Q13 (Dec) with [around] 10M iPhone units in inventory), we suspect this is an indication of s