Yes! The teaser along with an exclusive view of Harry Potter and the Deathly Hallows has been leaked! You can watch the complete video here. The video was originally uploaded on Vimeo and I received the link from Carrot. Thanks Carrot!
Anyway fans have to wait another 1 year for the release of the movie. And another one year for the second part of the movie.
BTW for the moment, I'm reading Harry Potter and the Half-Blood Prince. I've just finished reading Harry Potter and the Order of the Phoenix. And I'm already a mega fan of Harry Potter. But I am still not a real fan of Harry Potter movies because they are not as interesting as the books. Just read the books and you'll exactly know why.
For those who can't understand the above language, it's simply Harry Potter and Maut ke Tohfe(हैरी पॉटर और मौत के तोहफे)! And don't forget the video here!