iPhone App Heuristics

Hello IXDA peeps,

I'm in the process of adapting Nielsen's heuristics for iPhone apps &
would love your input. Here's an example of one:

1. Visibility of app status
The app should always keep users informed about what is going on,
through appropriate feedback.
Example: Shazam provides feedback as it analyzes audio. More common
feedback use cases: progress indicator when sending content (e.g.,
email) or receiving content (e.g., latest news).

If you'd like to view and comment on the rest (with images!) please
visit my blog at:
http://www.iphoneuxreviews.com/

Cheers,
Suzanne Ginsburg

blog: http://www.iphoneuxreviews.com/
work: http://www.ginsburg-design.com
twitter: http://twitter.com/suzanneginsburg