In the category of intellectual proprrty claims gone amok, Personal Computer World reports that

Deutsche Telekom has applied to trademark the word ‘hotspot’, the popular way to describe public wireless connectivity points.

Spanish telco Telefonica has also joined in the fiesta by putting in a rival claim for the two-word alternative, ‘hot spot’.

This is up there with BT claiming it owned the patent on hyperlinking, and various recent business process patents (e.g., Amazon’s claim of the concept of one-click shopping).

How does one enforce a trademark to the word as common as “hotspot,” I wonder?