The specs for the avail2 say that it will accept up to a 32 gb micro sd card. Looking around now, there are 64gb cards available. Is the 32gb limit in the spec there because of some hardware or software limitation? Or were 32gb cards the biggest available when the phone was released, so that is the biggest zte says it will work with. I have read some reviews on Amazon of the 64gb micro sd's and there are some issues with samsung phones, but they are hardware problems with the microsd cards themselves, and are generally replaced by the manufacturers. Just wondering if anyone else has had any experiences before I buy one and try it.