Wrong. Phonegap allows you to build apps for any platform without having to use native SDK's.
Go to phonegap.com and read up about Phonegap Build.
I have to disagree:
http://docs.phonegap.com/en/3.4.0/guide_support_index.md.html#Platform Support
http://docs.phonegap.com/en/3.4.0/guide_platforms_ios_index.md.html#iOS Platform Guide
You can build cross platform apps using phonegap, but unless you involve a Mac somewhere in the process, the results is not going to run on iOS.
Edit: Sorry, I see they have a cloud build option now: https://build.phonegap.com/
But I still think without a Mac with an iOS emulator, it is going to be a pretty painful experience. But then I do not have personal experience with this, so that is just my guess.
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