If someone tells you a source for a story is "very credible" or "has a strong track record" or is "a well-connected insider," do this simple check first. Is the person or entity saying these things about the source a rumor blog that regularly posts whatever random BS anyone says about Apple? If so, you may safely disregard their opinion of the source's credibility. In fact, it couldn't hurt to assume the opposite is true.
Analyst's predictions for 2013: New iPhones to be in short supply, Haswell iMacs/MacBook Pros arriving, no new iPad mini (9to5 Mac)
According to 9to5 Mac, some analyst "has a fairly strong track record in predicting future Apple products (tim