I have created a mobile app using Phonegap Build (not just Phonegap...but Build). I have a Windows PC and do not use eclipse or xcode. I just write the Javascri
You would need to join the Apple Developer Program to be able to sign the build and create the .IPA to use TestFlight or other methods to get the build onto the device.
There are options for you to test on a device without that though - see App.io for an in-browser emulator.
Whether you go with that or TestFlight I've blogged about Getting mobile app builds to your customers which includes the pros and cons of the options and the steps you'd need to go through.