Google (NASDAQ:GOOG) wants to sell consumers a Nexus 7 with 32GB memory for just $249 -- the same price as the 16GB model that is currently available. Based on the retailer ads that leaked in the United States and in the United Kingdom it seems that Google will release the upgraded tablet in time for the 2012 holiday shopping season. This is not necessarily a technical problem for Apple (NASDAQ:AAPL) which is expected to unveil a smaller iPad on October 23. But it places enormous pressure on the Cupertino California-based company to build an affordable large-capacity tablet. When the ...