Simona Jankowski, an analyst with financial multinational Goldman Sachs, predicted Apple's OLED-based iPhone 8 could cost $ 999 for a 128-gigabyte model, and $ 1,099 for the first-line model with 256 gigabytes of storage. Unlike the iPhone 7, she does not believe the iPhone 8 will be available in 32GB. Apple's most expensive smartphone to date is the iPhone 7 Plus with 256GB of storage, which sells for $ 969 in the United States. What does the note say? The increased demand for larger form of 5.8 inches will be supported…