While it might not seem like a big deal, Toyota's off-market iOS theme represents an acknowledgment of the jailbreaking community, as well as implicit support for the circumvention of Apple's App Store.
Upon learning of the theme on Cydia, Apple contacted Toyota, urging them to take it down. Toyota then contacted Velti, which had uploaded the theme, and they promptly removed it.
A Velti representative explained that Toyota agreed to take the theme down to "maintain their good relationship with Apple". And therein lies the question: as the jailbreaking community grows, will companies like Toyota become more willing to step on Apple's toes? After all, jailbreaking is perfectly legal. But, even for a company in a different sector, like Toyota, you don't want to be on Apple's bad side.
source: ModMyi via BGR