Remember not all that long ago when just about every computer notebook manufacturer was having problems with batteries -- like catching on fire! 

Now we have battery problems with cell phones!  

Apple is blaming a problem its problem with overheating iPods in Japan on faulty batteries.

In response to reports that Japan is investigating incidents of iPod nanos getting hot enough to scorch paper placed nearby, Apple acknowledged that "in very rare cases" first-generation iPod nanos sold between September 2005 and December 2006 can overheat.

Extremely rare, Apple said it has received reports about less than 0.001% of first-generation iPod nano units acting in this way, and has traced the problem to a single battery supplier. Apple did not name the supplier. 

Lots more at Macworld.