Active fuel management is when the engine isn't under much load it will switch from 8 cylinder power down to 4 cylinder by shutting off fuel injectors to those cylinders
special torques on drain plugs is redundant anyone who is mechanically inclined knows that drain plugs and fill plugs have little or no pressure from any leaks on them However I can see where a greenhorn may not know what tight enough is , different applications are more important such as Aluminum or magneseum cases or housing that can be damaged from over tightening
the wireless charging feature is a cheap gimmick I have a Motorola Play Droid phone and only way the charging works is if I take off the protective case that has two parts and a frigging hassle to put back on the wireless charging things is useless to me