BlackBerry users are getting another useful application before other mobile phone owners. E*Trade is launching a free mobile app called, appropriately enough, E*Trade Mobile Pro that lets its customers monitor their portfolios, get real-time stock quotes, create watch lists and even conduct trades right from the handset.

E*Trade says the new mobile service makes it the first major US broker to offer real-time quotes and cash transfers on a mobile device, WirelessWeek reports.

The brokerage house hasn't said if versions of Mobile Pro for other types of phones (iPhone anyone?) are in the works.