The iTunes App Store is now home to more than 100,000 iPad applications. According to MacStories, Apple and its developers set a record by hitting that milestone just 453 days after the iPad made its debut on April 13th of last year. That’s approximately four months after Apple hit the the 75,000 iPad app mark in March, too. The most popular paid iPad Apps of last year included Pages, GoodReader for iPad, Numbers, Angry Birds HD, Keynote, and more. That list isn’t very different today. At the time this article went to press, Video Time Machine, Angry Birds Seasons HD, Pages, Sonic & Sega All-Stars Racing, and Angry Birds HD were at the top of the paid apps list.