Question: Do you know of any blogs, or other sources, that do a good job tracking brilliant ideas in iPhone app design? Stuff like that great subway-finding app but not so widely linked; stuff that’s less whoahhh and more ooh, nice, perhaps. (That link is to Daring Fireball, and yes, I know that’s a good source; but I want something that goes deeper on actual iPhone app design and ideas.) I feel like there ought to be a dozen iPhone nichepapers out there. What are they?