Turns the iPhone into a better machine

Photo-Sort lets you assign names to your photos on the iPhone and, even better, lets you transfer photos between your iPhone and your Mac WITHOUT using iTunes and iPhoto. Being able to organize photos and sketches on the fly makes the iPhone significantly more useful. Apple should incorporate something like this in the iOS and pay royalties to Henry.
The app has some limitations due to Apples own very tight constraints, but it lets you break the iPhone out of its "sandbox" safely.
Tip for getting the ftp connection in Cyberduck: Omit the numbers following the colon when you type the ftp address in the Server field. Instead, put these numbers in the Port field. (At least, thats what worked for me; if it doesnt for you, leave the Port as the default 21.)
Major wish: landscape mode in list view, so that you can see longer file names
Minor wish: fit-to-view display in portrait as well as landscape mode of slideshow
Possibly impossible wish: a comments field that carries over to the comments in the Macs file system. (But this might make the app incompatible with Windows.)

Swienke about Photo-Sort, v2.2.2