So, I skipped version 1.1.1 and went straight to version 1.2.0.

This release supports the iPhone 4 with retina display graphics quality and additional new scales, bringing the total supported scales to over 70.

I'm working on an iPad-only release as well and should have it available shortly. It will use the high-resolution graphics in normal display resolution, with 5 scales per slider, instead of the iPhone/iPod 4 scales per slider.

Enjoy!