iSilo equivalent

I have many reference books as pdb files that I have been reading with iSilo on my palm and convert them to iSiloX on my PC. Now I have MacBook Pro and iPhone, I know iSiloX is available for Mac but is it possible to find reader for Mac and iPhone. I know iSilo reader is not available for Mac yet. I don't want to loose the reference books I have with my Palm.