Lenovo’s Legion Go was a polarizing handheld gaming PC, and that won’t change as the company officially announces its successor today: the new Legion Go 2 is slightly bigger, heavier, and costs at least $400 more than the original.But in many other ways, it looks like Lenovo listened — and so this handheld, with its Switch-like detachable wireless controllers, built-in kickstand, and hidden optical mouse, might just be the ultimate portable PC when it arrives this October.We already knew its new...