Toshiba have just officially announced the availability of its new 8-inch Toshiba Encore Windows 8.1 tablet. Available for order from November 2 on Amazon (UPDATE: Toshiba Encore became the first Windows 8.1 tablet under $200 in May 2014, with a price of just $199.99) The Toshiba Encore is just one of four new 8-inch Windows 8.1 tablets that are seeing release over the next couple of weeks, now that Windows … more…