Judy Breck who runs Golden Swamp (a blog about Mobile learning) has taken over the reins of the Carnival of Mobilist and she has just posted episode #65. If you don't know what a "carnival" is, it is actually a digest of related blog posts contributed by bloggers in the community. You can read the blog posts here. http://www.goldenswamp.com/2007/03/19/carnival-of-the-mobilists-65/
It's a nice collection of blog posts that is related to Mobility (although more Symbian based), covering topics such as Mobile Social Networks, use of mobile devices, education, presence, and communications. There's an interesting post titled "Why the iPhone's UI won't scale".