302 Redirect (only for google) using .htaccess
Lets say all google Ip ranges are included and that Pagerak spoofing works as of now.
Will the cloaking method below work?

Options +FollowSymlinks 
RewriteEngine on 
RewriteCond %{REMOTE_HOST} ^216\.239\.(3[2-9]¦[4-5][0-9]¦6[0-3])\.([0-9]¦[1-9][0-9]¦1([0-9][0-9])¦2([0-4][0-9]¦5[0-5]))$¦^64\.233\.(1([6-8][0-9]¦9[0-1]))\.([0-9]¦[1-9][0-9]¦1([0-9][0-9])¦2([0-4][0-9]¦5[0-5]))$
RewriteRule \.php$ http://www.example.com/ [R=302,L]

Thanks.