There’s an app for the iPhone called Mobile Fotos that lets you browse and upload photos to Flickr directly from the phone. It can even embed the location data of where you are before it uploads. Very cool.
In practice though it’s not as much use, because for some reason instead of reading the embedded location data from the photo, Mobile Fotos just reads your current location, which is where you are when the photo is uploaded. That doesn’t really result in very accurate geotagging unfortunately. 🙁
And whee, I managed to get through an entire LiveJournal post without this iPhone LJ client crashing!