Looks like an 'anonymous' dev has cracked the OTA update and with the help of SteelH of XDA, it is being distributed. To those who mistakenly updated via OTA only to lose root, or to those who happen to get a new phone with the 1.47 update applied, this is definitely for you.
{ROOT GUIDE} 1.47.651.1 ROOT method - xda-developers
{ROOT GUIDE} 1.47.651.1 ROOT method - xda-developers