The iPad was released over 5 months ago, on April 3, 2010, and we’ve yet to see some of the biggest iPhone apps be updated to take full advantage of the iPad.

The biggest Twitter app was Tweetie, which then turned into Twitter and has a ton of fans. However, it’s still absent on the iPad.

While we await Twitter, Twitterrific is quickly raking in the money as its by far the best Twitter app on the iPad. Its price tag of $4.99 may be a bit much for some, but it beats waiting for Twitter to release their version.