It's true that consumers don't have to "trust" anyone to make a good console. Even if you go by the reasoning that they'll dump some money on the console with the promise that there'll be good games in the future, you'll still have to pay for those games. Consumer trust on a brand is useless for the consumer, they won't get anything in return, there's no reciprocal relationship, the brands only cares about the consumer's money, and the consumers only get what they pay for.
Developers however, they have to trust the platform because they have to invest a bunch of money on it, and they will get a bunch of money in return. It's a reciprocal relationship, they put something in, they get something back. I don't know if trust is the right word, but they're asking themselves if they can take the risk or no.
So far apple has been pretty bad to develop for, especially games, especially if they want to have big games, their tools won't cut it; but as a market ios is great, many developers will probably trust that, and put up with the bad tools.