There are several questions/observations which arise from a straightforward reading:
1) When God says "Go to, let us go down, and there confound their language, that they may not understand one another's speech." who is the 'us' plural; is it literary, is it "God and His angles", is it God-as-the-Christian-trinity?
2) God says "and this they begin to do; and now nothing will be restrained from them, which they have imagined to do." which is, when you think about it, a VERY intriguing and VERY powerful statement ESPECIALLY coming from an omnipotent and omniscient being.
3) This language-scattering is, to some degree, commanded to Christians to be overcome: Matthew 28:16-20 (NIV)
The Great Commission
Then the eleven disciples went to Galilee, to the mountain where Jesus had told them to go. When they saw him, they worshiped him; but some doubted. Then Jesus came to them and said, All authority in heaven and on earth has been given to me. Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age.
And if you want to break out Revelation there's something in there about the time when the devil is bound for a thousand years that, IIRC (I'm going from memory here), mentions something about humanity being free from deception during that time.
The "royal We" was the norm for a sovereign in King James' time.
1) We are not amused.