I would like to add that I too want the same thing. It seems that the Album View was set up for images only, however.
As for bringing the desired option to fruition, it may be something as simple as changing the conditional statement for what goes into the Album View in the first place. Right now, I suspect that it searches for image objects only. Changing the condition to an "image OR dexterity-with-lead-image-field" might do the trick. Have to look at the source code, but this doesn't sound overly difficult and definitely useful.