Foxconn is ceasing production of the iPhone 5c at one of its factories in order to boost production of the iPhone 5s, according to sources cited by Digitimes.

Digitimes is not the most reliable of sources, but this one gels with other reports suggesting that Apple is cutting back on production of its plastic handset in order to keep up with demand for the iPhone 5s.

The reports can, of course, be viewed as indicating either success for the 5s or failure for the 5c. Given the numbers reported last month, following on from record opening weekend sales, it seems pretty clear that while Apple got its predictions wrong, the reason is good news rather than bad: more people than expected opting for the high-end handset.