Anyone know a way to run this in an Site-specific-browser app on the iPhone?
Unfortunately, it has to be written in the page rather than you deciding what you want to do when adding it to the springboard. It's the case with all Google products except Google Talk strangely and I find that's too bad…
javascript:var%20s=document.createElement('meta');s.setAttribute('content',%20'yes');s.setAttribute('name',%20'apple-mobile-web-app-capable');document.getElementsByTagName('body')[0].appendChild(s);alert('Now%20add%20the%20webpage%20to%20your%20home%20screen!');void(s);
* Visit voice.google.com
* Paste javascript into address bar, click "Go"
* Dismiss notification ("Now add the webpage to your homescreen")
* Add Google Voice to your Home Screen.
I didn't test it too much, but it appears to work fine in a SSB.
It did seem to work for most apps I tried too. (Gmail, Voice, Tasks) There's also a meta tag to select the kind of status bar you want (gray, black or translucent) but it seems that it's dismissed if the page doesn't really have it.
Select "Add to Home Screen".