This is great news. Although the Kojien is arguably the most prestigious monolingual Japanese dictionary, many translators (myself included) feel that the Daijirin is more useful, because its definitions are more explanatory and descriptive than Kojien's.

It's great to have what I consider to be the best general-purpose Japanese-English bilingual dictionary (the Green Goddess) and the best monolingual Japanese dictionary in the same service, with the ability to look up words in both dictionaries (and many others) simultaneously.

Here's an example of one of Super Daijirin's definitions (for wazurawashii)