The one thing I would like is to be able to highlight a word and then search, rather than typing in.
Move to the start of the word and press the controller as if you were going to to highlighting then right click over the word, and then hit the space bar (this is essentially highlighting the word but then instead of clicking the controller to finish the highlight hit the space bar instead).
The word is now in the "note" box. Click down to the options, and then click right which reveals "find", "my items", "store", "Google", "Wikepedia".
Edit - as I was typing Annalog wrote a reply. Yes, it works the same as the K2.