いつでもどこでも、お使いの端末で何百万もの最新の Android アプリ、ゲーム、音楽、映画、テレビ番組、書籍、雑誌などをお楽しみください。
If you are on your way to someone, let them know where you are. Send an email with which they can see you driving or walking.
If someone is waiting for you to arrive this will help them to keep track of your way.