Is it possible to make a PhoneGap app for iOS without Mac?
According to this article, you no longer need a Mac?
Edit: Link updated
For those wondering how to sign their app for iOS in Windows, here's how you can do so: building an iOS signing key for PhoneGap in Windows.
You still need an Apple Developer Account, there's no getting around that.
No it's not possible.You can build your phonegap application in the cloud without a Mac (with some limitations depending on the build plan you choose).
As @stu sais, you may be able to make a certificate for Apple Store using Windows.But, finally, you will need a Mac with Xcode installed to updload your application to the App Store.