Yes, it's true! I've been actually working on the next update to the iSlideRule app.

The features I'll have in there include:

Setting the position on each rule for each selected scale (a very commonly asked for feature!)

Double-tap on any rule to select another set of scales from your pre-configured settings. Up to 12 scales can now be associated with each of the three rules, in groups of 4 scales each. Double-tapping the scale rotates through the groups.

Double-tap the labels descriptions on the left of the display to view the formula for each scale and a simple description of what the scale is.

Optionally turn on of off the display of numeric values. When the rules are stationary and the cursor is not being moved, the values on each scale will be shown on the cursor.

In addition, I've added several more scales, bringing the total to 60 scales supported. I've also updated the app to work with iOS 4 (currently in testing on this area).

I've got a bit of work remaining, but will posting the update to the AppStore soon!

Cheers!
Steve