I released an update to ConfiGAP today. One of my users found a couple of issues that snuck in. The first was the size value for retina iPad splash screens. There was conflicting documentation on the size, but I think I have the proper value. The other was an issue with setting the icon and tile images for Windows Phone.
I also added support for PhoneGap 3.4.
Now PhoneGap Build has NOT enabled support for this version yet, but I figured it should occur really soon. Well, on April 8th, PhoneGap Build announced support for PhoneGap 3.4 :)
If you find an issue, or have a comment, please drop me an email.