Barnes & Noble, America’s biggest bookstore, dropped the price of it’s Nook 3G e-reader by nearly 25% yesterday to $202. It also added a $151 version that can only download when it’s near a Wi-Fi connection. Neither is yet available in Canada. Market-leader Amazon.com reacted by dropping the price of its 3G Kindle to $192 just hours later in both the U.S. and Canada. Indigo’s Kobo e-book reader was already aggressively priced in May at $149, analysts told CBC.