I don't think it's specifically a Blackberry app, but I used the yahoo one on my Blackberry--it worked great on my Curve 8900---used it plenty while at my son's actual pop warner football games---it might be from Yahoo for Blackberry though, I can't recall specifics--I just know it worked great...that reminds me, I need to d/l it again since I deleted it after the football season was over
update-it's on app world as yahoo fantasy football 09..I suppose they will update it when the new season starts--
I wish they just had a straight up Fantasy Football App, that would cover ALL the different services out there (yeah, i know, pipe dream). Last season i was in several leagues on ESPN, Yahoo, CBS Sportsline.....
For me, i just bookmarked the "Scoreboard" pages for each of my leagues, from there on the BB's browser I could do MOST of what i wanted. While i prefer to do all my transactions from an actual computer, i was able to check scores, change my lineups, and follow the games on sunday/monday with the BB's browser.