Is online retail giant Amazon prepping a new wireless network? According to Olga Kharif and Danielle Kucera at Bloomberg, the answer appears to be yes: Inc. has tested a new wireless network that would allow customers to connect its devices to the Internet, according to people with knowledge of the matter.

The wireless network, which was tested in Cupertino, California, used spectrum controlled by satellite communications company Globalstar Inc., said the people who asked not to be identified because the test was private.

Amazon already has its own network, WhisperNet, which delivers books to customer Kindles. But with a more robust network, Amazon could conceivably deliver much more than books.