McSweeney's has an iPhone app called Small Chair.
We hereby announce the debut of the Small Chair, a weekly sampler from all branches of the McSweeney's family. One week you might receive a story from the upcoming Quarterly, the next week an interview from the Believer, the next a short film from a future Wholphin. Occasionally, it might be a song, an art portfolio, who knows. Early contributors will include Spike Jonze, Wells Tower, Chris Ware, and Jonathan Ames. This material will not be available online and is pretty sure to be good stuff.
My iPhone usage has been almost exclusively baby-related for the past few days, but I hope to try this app out soon.