I think Commodore would face hard times today. The computers market has changed considerably since the early 90s. I bet the last round of nVidia vs ATI/AMD cost more money for development than the whole Amiga series. Plus there isn't much to earn from yet another OS.
I can imagine Commodore mobile phones. Not as cool as iPhone, but on a level with Samsung etc. If Commodore would really be loaded, then they even might have done something similar to the PS3, without crippling it for desktop use. But PS3 was a flop.
The key to the Amiga's fame is the devotion of its makers. They just wanted to do it right.