Will google be fair to the fmccabe?
Hey, Google, you can't have all the good names, you know.
Of course "go" is probably too generic/descriptive to be a trademark ...
Very true. But there's also a place for common courtesy and pragmatism, bypassing legal inefficiencies. Go is really not that great of a name, so there is no loss for Google to change it.
It's interesting to see what happens when namespaces clash in real life.