I picked up Swiftkey3 last night for $1.99. Long ago, I had purchased RERWare's MyBackup Pro, but it's on sale now and is a great deal.
Past that there are a few others that were not on sale:
I decided to buy Car Home Ultra...even if it wasn't on sale. It's a slick program.
I also picked up Sports Radio Droid Pro. When Radio.com/Yahoo Radio fails (which is often), this is a great backup. I don't mind supporting the developer.
The last one was SoundAbout Pro. I was reading some horror stories about the Galaxy S3 if you had your phone connected to your car via BT and had the aux jack in use listening to Pandora, Google Play, etc. Because the jack was in use, the Galaxy by default would route the phone call through the aux wire instead of the BT to the car. I'm not sure if they fixed that in Jelly Bean or not. Nonetheless, I like the options it has for redirecting audio.