In the last few hours, I've seen tweets from at least two different folks at Apple about new openings for engineers for the iPhone, iPod Touch, and iPad. Here's one. Here are some more.
Or you could just do your own search on Apple's job's site.
Also, if you're more of an East Coast kinda person, Rosetta Stone is also looking for a good iPhone programmer. Ping me on Twitter or in e-mail for more details.