As i said the istinct supports up to 32mb sd cards dont read stuff from those forums i got that directly from Samsung, and they told me the 16mb cards should be out pretty soon but they will be expensive like over $100.
As of the webcast today, NO the phone we currently own will not support cards larger than 8GB. These quotes were taken from the transcript here
http://wikis.sun.com/display/SPRINT/Sprint+Samsung+Instinct+2008+07+09+Webcast+1+of+2k_mehr: Will the Instinct be able to handle/support a 16GB or 32gb MicroSD card whenever they are released?
Ram_K> Instinct at max supports 8GB MicroSD card but we are definately going to look at extending this functionaly in our future releases. Thank you for your feedback.
mmbeltran: When you say that you are looking at extending the functionality to support more than 8gb in future releases, does that mean future hardware releases or firmware/software based updates?
Jay-Sprint> Support for larger memory cards is hardware dependent and will be a consideration with next generation of Instinct models.
There you go exactly as i was told that it will support up to 32mb as soon as the card is released but for now there is no 16mg card out yet but it will be soon.