Just got a Tab for my wife last Saturday and have one week left of the 14-day return period. My question is should I return it and wait for the 7.7 model? She needs 3/4G and can't use the Wi-Fi only models on her commuter bus. If the wait would be too long then I guess we keep the Tab. Also, what is the best guess as to what the cost of these newer tablets would be? Just don't want to get stuck with another device like I did when I jumped on the Samsung Fascinate and missed the return window. Thanks.