Can anyone tell me what the max I can install in the Bionic using the micro sd card?
Yes, 32 GB SD card is the largest you can install. Not just because there isn't larger out there, but 32 is the largest that SDHC supports. Next series will be SDXC which will range from 64GB to 2TB for micro SD.
Btw, don't be fooled by the iDevices having 64gb, that is just two 32gb modules in tandem, SDXC is still in development.
The answer is 42.
Oh, wait, you mean to tell me you need to know the question now?
Well, I can't answer that.