“PhoneGap is an open source project, published under both the
modified BSD license and the MIT license. You can learn more about
licensing details here. To download the project, head over to the
PhoneGap website and click the omnipresent download button located
on the top-right side of the page. Once downloaded, your next steps
will be determined by the desired mobile platform, of which five
are supported (Android, Blackberry, iOS, Symbian, and the recently
defunct WebOS).No operating system restrictions are placed on those wishing to
develop for Android, Symbian and WebOS, whereas if you’d like to
target the iOS platform you’ll need to be running Mac OS X. Those
wishing to target the Blackberry will need to run Windows XP or
Windows 7.