sliders?

The current version of Conduit that is in the App Store does have the ability to make anything draggable via the draggable="yes" parameter. However, that version does not have object properties exposed that will allow you to control the alpha level of another object.

However, we are currently aiming for sending a new version of Conduit to Apple early next week that does indeed provide a very easy way to do exactly what you are hoping to accomplish. There are a large number of features that will also be included, so look for an announcement in the next week.

Stay tuned!