i just downloaded the app - works great, well worth the $10.
be aware however that when you install it you need to slide the icons on the left to see the configuration icon.....lol took me 3 mins to find it until i closed the keyboard and shut out of landscape mode.
not sure how long the application will be $10 but grab it now. Althought there are several minor things that need to be corrected they have a healthy and fast support team turning around feature requests quickly.
There is a great installation guide here