they are all long stories, you can look them up by searching here in the forums or use google, but yes Hyperion is in a court case with Amiga Inc. (which now a days owns most of the Amiga trademarks etc.). Amiga Inc. outsourced the making of a new amiga os in about 2001, which was to acompany their new ppc hardware from Eyetech, the AmigaOne. It took years to "finish" and Amiga Inc. wasn't happy about the delay and the resulting product. Hyperion says they didn't get enough paid etc etc.
Now they are in a court case, Amiga Inc. doesn't seem to care about the amiga scene anymore and, and Hyperion is selling the os by themselves, for classic ppc amigas and just now with the ppc board from Acube called the Sam440.
Commodore Gaming is just a pretty small european company that tries to sell gaming pc's and some other stuff with the Commodore name and logo on it for profit, little or no commodore spirit is in their products anyway.