Notes Plus
It is the most innovative and the best app ever. It brings an amazing experience to the iPad. Notes Plus is a powerful note taking tool that supports handwriting, typing and audio recording. It offers close-up writing mode for small text, stroke smoothing, vector shape auto-detection, palm handling, complete folder structure, PDF exporting, Dropbox backup, emailing, Google Docs uploading and more.
You can write comfortably with your big finger. It has advance algorithm that makes your writing looks best. You can even write with closed eyes using auto-advance features.

It has a clean interface. It’s so easy to use that you even don’t need a tutorial but still when the app is first loaded there is QuickStart guide to help you.
Its price is $4.99 but this app is not for everyone. So, visit the developer’s website before buying this app.
Real Racing 2
Now you can play wirelessly on your HD TV through AirPlay. You can also challenge your friends to a split-screen multiplayer race with Party Play and enjoy enhanced visuals. This is for iPhone 4S only.
So, get ready for the most adventurous racing experience. You can control 30 officially licensed cars, each with unique performance and marvelous characteristics. You will feel the thrill of authentic pack racing action in an incredible 16-car grid. It includes 2010 Ford Shelby Mustang GT500, 2010 Nissan GT-R (R35) and 2012 McLaren MP4-12C and many more.

There are many new improvements in this game. Its price is $4.99. Buy it now and get into the best handheld racing experience.
SoundHound
SoundHound is for instant music search and discovery. It is the world's fastest music recognition and viable singing and humming recognition.

Now, you can also get Real-time Facebook and Twitter updates from artists. Just tap a band's name to instantly see its latest social news. SoundHound works on the iPhone, iPad, new iPod Touch and second and third generation iPod touch. You can get it for $6.99.