128gb flash is feasible, but anything else is years away Edit: From being possible to put in a mass scale device due to cost and other tech issues (power consumption).
64gb internal and sd is perfect mix for me
Apparently no 32GB are available for the Qualcomm version yet. Global launch coverage has priority over additional inventory breakouts to cover two more models per any carrier, not counting a 64GB option.
Stress test for accuracy of this will be if At&t users get a 32GB this week or next... or the week after that......