First off, I apologize if this has been posted before. I've never known it to exist but given my contacts number over 1,000 this trick and shortcut works wonders. I discovered it today by fluke.
In the address book in all contacts view instead of using "search contacts" which brings up the keyboard and forces you to type, simply swipe your finger up and down the small index letters on the right side of the screen.
I love this. No more typing to bring up the keyboard to search. Just a simple movement up and down over the small index letters on the right.
Like I said. Sorry if you already knew this . If you didn't, I hope it helps.
Posted from my Z30 on CB10