It's been couple of rocky years for Garmin. They offered a GPS phone to compete with the iPhone, but it didn't sell well. It was a good navigator, but not a very compelling phone. Then Garmin tied up with ASUS to bring an Android and Windows Mobile version of the phone to market. That pretty much cratered too, and now it looks like the Garmin and ASUS partnership will dissolve in January.
Now there are reports that Garmin will pursue the app business, and that may include an iPhone version.