I would gladly pay full price for BikeCad Pro if it were on the iPad, especially if it integrated FullSuspensionCad.
If it's all contained in a Java file, can that be easily packaged for iOS?
Dunno if you've used one, but they're pretty slick, fast & clean, like bikecad itself. The iPad+BikeCad package would be really attractive for builders who are builders, and not computer guys (which seems to be common). As well, it'd be the most sophisticated design app in the appstore. You'd probably get a huge amount of exposure for doing it.