FriendFeed, of which I’m a member, recently launched an iPhone-friendly version of their site. Notably, however, they’ve done it in such a way that I much prefer to some of the ways other sites have done it. They detect the iPhone’s mobile browser and automatically format it for you, rather than requiring you to remember the URL of the iPhone-friendly site.
Flickr, on the other hand, has a mobile Website that – while it works fairly well on the iPhone (though it isn’t built for it) – is not interchangeable with the normal Website. What I mean to say is, if someone links me to a Flickr photo on my iPhone either via Twitter, FriendFeed, or even through an SMS message – I’m forced to be taken to the full-fledged, slow-loading Website without so much as the choice of loading the mobile version. At least with Twitter I’m able to simply prepend the URL with m.*, which switches the site into "mobile mode", and see the same content. Flickr’s URLs for their mobile site aren’t hackable.
FriendFeed does have hackable URLs ((Just insert /iphone/ into any URL.)). Combine the hackability of their URLs with the detection of the iPhone and you’ve got nearly a perfect solution for iPhone users.
Side note: I love the FriendFeed looks nearly the same on my iPhone as it does on my personal computer. FriendFeed’s design lends itself to this because of its simplicity, lightness, and straight-forward "the content is the design" approach.
Source: FriendFeed iPhone interface.
Via: TechCrunch: FriendFeed Finally Gets iPhone Friendly ((I don’t like the use of the word finally in this title.)).