At least not with SiRF:

In spite of the current state of the U.S. economy, any number of market analysts and researchers tout the ongoing, near-term strength of consumer demand for personal navigation devices (PNDs) and other GPS technology. But SiRF Technology is telling a different story.

SiRF today said it was lowering its revenue forecast for the current quarter, its fiscal first quarter (Q1) which ends this month, and would lay off approximately 7 percent of its workforce, or about 50 people. The company had forecast revenue between $71 million and $77 million for Q1; now it anticipates that revenue will come in between $60 million and $62 million. (GPS World)