Well, if you have a Scottrade account, you probably want to pick up the Scottrade Mobile App from the BlackBerry App Store. It’s free, and you can do most of the things on the app that you can do on the Web – namely, buy and sell stocks, set up and view watch lists, and get updated research, charts and news.
If you’re a little more into the game, you can manage limit orders, conditional orders, and options trading, too. It’s everything you’d expect from a market trading app, and is on par with the offerings from TD Ameritrade and eTrade, from an app standpoint. Just – good luck with the whole stock trading thing. I didn’t need the Scottrade App to tell me things aren’t looking too hot right now.