At issue with the Vaios in question is a temperature-control defect that could distort the laptop's shape and cause severe overheating. The affected models include some of the F and C series Vaio notebooks sold since January of this year. According to the Wall Street Journal, the tally includes 259,000 laptops in the U.S., 103,000 in Europe, 120,000 in Asia and 52,000 in Japan.
Apparently the problem can be fixed with a simple download, or customers can have Sony pick up their laptops for repair. In the meantime, you Vaio owners might want to get out the oven mitts.
UPDATE: The WSJ's use of "recall" doesn't seem to be entirely accurate, as Sony is recommending a BIOS firmware update (as mentioned previously). [WSJ].
To Sony's credit, they did admit to the defect and are taking steps to correct it. I think Dell is in 'a world of hurt' from the way they handled their problem!