AltiVec acceleration isn't just a matter of flicking a compiler switch though - the AltiVec optimisations in WarpJPEG are certainly not the same as in the MorphOS jpeg.datatype. I've no idea how good the AltiVec code is in the MorphOS datatype - it may be better/faster than WarpJPEG, or vice versa (I don't have the hardware to benchmark them).
Is the 68K versions improved? Do you take registrations for the WarpDataTypes?
