I see you've released a new unity package that is compatible with Unity 4.3, which is great news!
I can start a project from scratch with no issue, but when I upgrade a previous project, I'm getting this error:
Assets/Qualcomm Augmented Reality/Scripts/Internal/CameraDeviceImpl.cs(334,13): error CS0029: Cannot implicitly convert type `WebCamImpl' to `WebCamImpl'
Any ideas on what might be causing this? The error doesn't seem to make any sense to me, I'm thinking there might be a conflict with the previous vuforia unity package (2.6.7) but I haven't been able to track it down.