First up, here's the boring details on what SoftBank is...

SoftBank Group Corp. is a Japanese multinational telecommunications and Internet corporation established on September 3, 1981, and headquartered in Tokyo, Japan. It has operations in broadband, fixed-line telecommunications, e-commerce, Internet, technology services, finance, media and marketing, semiconductor design, and other businesses.

For whatever reason, they felt partnering up with the Pokemon Co. was a good idea to promote themselves. Hell, I'm fine with that, because we get these silly commercials!