Here are a few of the features of the "Honeycomb 3.2":
SD card supportFirst and foremost, Honeycomb 3.2 adds SD card support, which means if you got a Honeycomb tablet with an SD card slot you can put it to good use now. But hold on, it’s not what you think: you can only read from those cards you insert in your tablet. I’m a bit puzzled by this, as pre-Honeycomb Android devices (including by 2.2 Froyo Samsung Galaxy S) are able to read and write from SD cards. The only reason I can see for this move would by Google trying to protect tablet manufactures so that adding more internal space would require getting a more expensive model.
Anyway, you can still add files to an SD card via your PC/Mac, so you can for example transfer music and videos to a card to listen/watch those files on your tablet. It’s the complete opposite mentality to Apple’s iOS 5, which will try and separate iPad’s dependence of a PC/Mac.