There are many iPhone application review and introduction sites all over the world. And there are sites introducing application of the good design and interface. These sites have a unique list different from the major review site.
If you are developer of iPhone application, these sites will help with your development.
(2011.03.20 – added 4 sites)
CreativeApplications.Net | Apps That Inspire…
It deals with iPhone application, Flash, openFrameworks, Processing and wide technology. It is not only the design but also artistic contents.
The Best Designed iPhone Apps | app.itize.us
This site introduces application of iPhone and iPad.
It is easily viewable!
TapFancy – An iPhone app design showcase and gallery
The site that introduces only a screen of the iPhone application.
This is a good reference.
TappGala: The Best in Mobile Interface Design
This site displays only screens of the application, too.
The site is beautiful.
Appsolute.ly | iPad + iPhone + iPod Touch + Apps + Games + Style
This site introduces application in original category.
A frame of the hardware and a tag are added to each application.
It is careful work.
This site introduces one screen every application.
Very simple design.
AppLaudable – iPhone App Design Gallery
This site composes a screen of the application with an image of iPhone 4 and displays it.
Mobile Application Gallery
The gallery of iPhone, Android and Web.
Beautiful Pixels : Unhealthy lust for UI design
Very beautiful site.
The app description is also included.
The gallery of iPhone/iPad app and web.
You can submit app and web design.
It is a gallery of web site, but it has a contents of mobile app.