Even if you do not need the phonegap API, you should use the Phonegap construct:
a. Build the Sencha application using the phonegap-build site. It is free, easy and simple. see details below.
b. See the Sencha Native API tutorial here . http://docs.sencha.com/touch/2-0/#!/guide/native_apis
More details
Use the free Phonegap-Build website . Its fantastic.
a. Use it if you need special functionality - AFAIK Sencha Native is missing contacts - please correct me if I am wrong.
b. Use it because you need a free online utility for free online telephony that gives you instant compiled code for iphone, Android, Windows mobile, blackberry (!) Etc.
How to compile Sencha application on Phonegap-build
a. You will delete the phonegap.js file (or cordova-xxx.js file) from the folders.
b. You should have a link to the phone difference in your app.html application. If it is there, leave it. If you do not add the following line after the link to css.
<script type="text/javascript" id="phonegap" src="cordova-1.7.0.js"></script>
with. You will copy app.html to the new index.html file (I have not tried RENAME, not COPY, but it will probably work too)
e. Download the credentials from the Apple developer, which you can create from your PC using open SSL.
e. You will archive your directory, and on the phonegap-build website, modify and upload this zip code.
Sencha compiled code works on all devices (iphone, Android, Blackberry Touch, etc.)!
to use