I don't know if this is new in the 1.2.1 firmware, but if you look up a word, it now allows you to enter a different word to look up.
Originally Posted by RAH
1. The dictionary is builtin. You do NOT have to be connected to use it. Only wrinkle - there is no facility to key in a word and look it up - i.e. the word must be in the book you are reading; you then select it and click "Look up"