At the top of the home screen, you'll see a black toolbar featuring your Kindle's name ("Brian's 3rd Kindle" for me -- I'd have preferred something with more zest like BattleBook), your wireless connection (3G, suckers), battery life and the time.
And many FIX-enabled financial apps don't even use passwords for their sessions, mainly because the apps were originally mostly built for use internally for a private connection between business partners -- rather than over the Internet, which is increasingly becoming the preferred method.