Comment Re:Yes (Score 1) 782
There are lots of GPL apps on the AppStore - the most well known is the Wordpress app. If source code is available on the developer's site, than things are good to go. Anyone can download, for free, the iPhone SDK. It costs nothing to download/install the SDK. It only costs $99/year if one wants to publish an app into the AppStore or run it on a physical iPhone rather than the software-based iPhone simulator.
The developers are doing the right thing, IMO.