Screenwriting apps for Blackberry and Java enabled feature phones?

I've seen a number of screenwriting apps for iPhones/iPads/iPod Touches and Android opperated phones but none for Blackberries. Not even for Windows Phone. I think screenwriting apps would go perfectly with Blackberries. I know Blackberry phones are intended for business professionals but professional screenwriting is both business as well as entertainment and creativity. Screenwriting apps for Blackberry would be convenient for screenwriters who own Blackberry phones.

PS It would also be nice if there were Java-based screenwriting apps for Java-enabled feature phones too (you know, those non-smartphone, basic phones for people who can't afford smartphones)