"small" Mavericks Updates

After my first day with Mavericks I have found some small things which are new and great.

1) Mavericks shows currently plugged in SD Cards, Hard-drives,... on the right upper edge (below spotlight)


2) Autocorrect is now fully integrated into OSX. It tells you it corrected a word by underlining it with small blue points.


and gives you proposals like this:


3) for all the iMessage Users out there:

a) Emoji is now fully integrated


b) you cannot only respond messages in the notification center, but also write new ones. I'm not sure wether they mentioned it in the keynote or not.


What other "small" new features have you realized?