The Unofficial Apple Weblog (TUAW) is running some screen shots of what may well be our first glimpse of the iPhone's App Store.
Pretty much what you'd expect if you combined the Wi-Fi Music Store with apps, the shots came TUAW's way via a tipster. Seems said tipster claims that, after repeatedly stabbing away at the App Store button (does that mean he was running the SDK beta??) and failing to connect, lo and behold he got through.
UPDATE: iPhone l33t hax0r Erica Sadun went poking around the storeBag.xml from Apple's public iTunes server and found the following:
There appears to be a new service, labeled "p2-panda" [note: p2 might stand for "purple", the iPhone code name] that offers access to the same functionality that Cory reported on last night. Specifically, the panda calls include StoreFront listings, Genres, Top Fifty listings, and Updates. If nothing else, this independently confirms functionality seen from those screen shots.
Be sure to check out her complete post for more geeky goodness!