The cable is likely micro USB because a group of mobile device manufacturers agreed to use it as the standard for charging by 2012.
Here's a short news article about it. You will be seeing more of that in the future so the cable won't seem nearly so unique in time.
As for folders, I would like them but I can manage to find things just fine with the sort and search capabilities I currently have. I would prefer to have folders or be able to add tags, though.