Apple engineers are reportedly spending more time in the air lately, shuttling between the U.S. and Asia, where its tablet manufacturing is said to be ramping up.

Alaska Miller reports for The Business Insider, “A source tells us a system integration engineer friend of his at Apple has been ramping up his travels back and forth between China lately, broadcasting word of his travels over the Internet.”

“There’s even a few weeks scheduled during the Christmas holiday season,” Miller reports.

Full article here.