My X51V did not work with an 8GB SDHC until i upgraded to WM6.0
And by the method of deduction, i would deduct that your 3i just would not cut the proverbial mustard.
However! Do not dispair. Once these SDHC are more common, you could just try one off a friend to see if it works. Or you could visit one of those photo developer places, and and see if they have one you could try.
