shortcut key for Blackberry

To switch to another application, press and hold menu button.
To exit a screen or dialog box, press the Escape button.
To select a check box, press the Space key. To clear the check box, press the Space key again.
To select a line of text, press the Shift key and roll the trackball.
To cut selected text, press the Shift key + the Backspace key. To copy selected text, press the Alt key and press the trackball. To paste text, press the Shift key and press the trackball.
To capitalize a letter, hold the letter key until the capitalized letter appears.
To insert a period, press the Space key twice. The next letter is capitalized.
To insert the sign (@) in an Email field, press the Space key.
To reply to a message, press R. To forward a message, press F. To reply to all, press L.
To move to the top of a screen, press T. To move to the bottom of a screen, press B.
To scroll down a screen, press the Space key. To scroll up a screen, press the Shift key + the Space key.
To turn on CAP lock, press the Alt key + the Right Shift key. To turn off CAP lock, press the Right Shift key.
In the messages list: To view sent messages, press the Alt key + O. To view received messages, press the Alt key + I. To view SMS messages, press the Alt key + S. To view phone call logs, press the Alt key + P. To view voice mail messages, press the Alt key + V.
To move to the next item, press N. To move to the previous item, press P.