Google and Apple are good buddies -- after all, Google's CEO serves on Apple's board -- but that relationship wasn't enough to keep Apple from refusing to offer an application for the iPhone to access Google Voice.
Google Voice, recently released to the public, offers a free phone number that will forward calls to multiple phones, record voice and text messages and allow access from a central online management tool.
Among other reasons, Google Voice's features compete directly with AT&T's All in One voicemail and call-forwarding services for businesses, as well as many included with the iPhone itself -- neither of which will be free anytime soon.
Google has also entered the smartphone market with an operating system called "Android" that offers a similar interface and features to Apple's iPhone.
Apple has also limited functionality to applications like cheap calling application Skype, and states that applications that mimic functions already on the iPhone will not be available for download.
Apple and Google are also under investigation by the government for potential anti-competitive trade practices, partly because of how close their executives are.
The latter reason, if true, would be especially ironic -- rather than too much competition, Apple and Google might worry regulators would see it as not enough.
Google Voice users can presumably still access the service through the browser on the iPhone.
Jackson West is still stuck with Windows Mobile, sadly.