It is present in the OMAP2420 (which is what's in the N8x0 devices), it's not used. I can't see why the problem would be screen resolution, if there were some memory limitation you'd just have to draw a smaller area (and upscale it). The issue for us, afaiu, is that the IVA "kernel" and tasks and all information about programming it are only available under NDA/through officially endorsed 3rd party suppliers. This combination is, afaiu, what stopped Nokia from using it.