why does it matter? The iPhone 4 comes with a charger..
Its the same exact connector, as long as it isn't a specific dock it should work.
any updates from the iphone 4 users out there?
If you are talking about the little white USB cable or the adaptor that lets it be plugged into the wall, then they are both exactly the same. I haven't even unpacked the cord that came with my Iphone 4, just usedthe 3GS plug that was beside my bed or plugged into my laptop.
Same here. I saw no need to unpack the new cord when my current one works just fine.