Another one I've just noticed is: DAE Viewer 3D https://market.android.com/details?id=com.afanche.android.ATView3D_DAE&feature=search_result#?t=W251bGwsMSwyLDEsImNvbS5hZmFuY2hlLmFuZHJvaWQuQVRWaWV3M0RfREFFIl0. Only $3 CDN vs $15 for SightSpace 3d. Unfortunately my rooted Nook won't run Glovius.