As Wez just pointed out on his blog, he and Jan have published a php-objectiveC bridge.. it actually works out of the box for me on tiger. Much less pain than expected, even! (-:
Can't wait to play with this a little more.
Teaser: 
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My friend Paul has a cool service called Wonderproxy that lets you test and develop GeoIP-based apps without the normal headaches. If you need to simulate remote, international traffic, you should check it out.
Thanks for the fame, but The Bridge is all Wez. All cheers to him!