What are good ways of building groups/folders?
I've tried by feature (UI for a feature plus model etc) with a common group. I've also tried by UI, model, etc.
The former keeps like things together which fits the iPhone paradigm nicely. The latter means I jump around a bit more.
What do you think?
It's going to be very project dependent. In my last project I had mostly views, and so I organized the views by view-type.
I alway use the structure of this: http://akosma.com/2009/07/28/code-organization-in-xcode-projects/ (the other links are starting with hhttp -> must be htpp, i did this because i just can post one link)
Also other interesting links are:
hhttp://newfoo.net/2010/07/07/good-practices-for-big-iphone-projects.html
hhttp://www.stack.nl/~dimitri/doxygen/starting.html#extract_all
You can download a good example project of akosma here: hhttp://github.com/akosma/Senbei