The popular check-in service, foursquare, recently announced that it has acquired 10,000,000 users. In celebration, the service updated its iPhone application.

Great news, fishing fans: The popular iPhone and iPad apps, Fishing Joy and Fishing Joy HD, have recently received an update. Now, users of the app can enjoy a stabler experience (as various bugs have been squashed), along with additional achievements and a new scene with new fish.

In a recent report, application store analytics company Distimo investigated the changing app market, and came up with some interesting findings. Not only are some Western countries losing interest in mobile applications, but China - who only got their own App Store last fall - is now the second largest app market (behind the USA).

The popular universal app, Infinity Blade, has recently received an update. However, don't get too exited - in the latest version (1.31) ChAIR Entertainment has fixed a variety of bugs and added improved support for international languages - no new content has been added.

INK: Tattoo Simulator is a new, free application for the iPhone and iPod touch, which allows users to check what a tattoo looks like on their body before having the work done.

The popular dictionary and thesaurus iPad app, Terminology, has recently received a major update. Now, besides a rewritten user interface, users can take advantage of new customization options and improved performance. Currently, the application is available to download for $2.99.

Good news, TiVo fans: According to the latest print edition of CEPro, a TiVo iPhone application should be available in the App Store soon.

Hulu has recently updated its universal Hulu Plus iOS application, removing a subscription Web link (to its website) in compliance with Apple's in-app subscription policy.

The UK tennis tournament, Wimbledon, may be the oldest tennis tournament in the world - but that doesn't mean it isn't in keeping with the times. If you're a fan of the annual event, head over to the App Store and download Wimbledon - a free iPhone application that features all the news, fixtures and results you need to know on the go.

We have recently learned from our sources that Nuance Communications has acquired the popular iPad app, Noterize - an application previously featured in Apple's "iPad is Iconic" TV ad. Following the purchase, the app in question was removed from the App Store.

Halfbrick Studios has recently updated Fruit Ninja and Fruit Ninja HD, adding a new fruit, new music, and various other tweaks and improvements.

Now, if you want to read content from the New York Post on your iPad, you'll have to do it through the official application. A recently launched "paywall" presents users from accessing the publication's website through Safari for iOS.

According to a recent report, Apple "is not afraid of [Facebook's Project Spartan] at all," and the company is even rumored to be "lending some minor support."

The Best iPad Apps Of The Week is published each weekend; a companion piece, The Best iPhone Apps Of The Week, is published separately.

Wacom has recently launched its stylus-centeric iPad app, Bamboo Paper, which Apple fans can download for free until the end of this month. Furthermore, the company is releasing an accompanying accessory - Bamboo Stylus - in the near future.

Magellan has recently updated its line of RoadMate applications for the iPhone, adding new features such as Yelp integration, Google Local Search and access to the very latest map updates.

The most important thing you need to know about Ball Frenzy is that despite its appearance, it's not really a soccer game. In fact, according to its developer, the application encompasses aspects of marbles, pool, soccer and bowling.

In the first beta version of iOS 5, Apple has added an amazing feature called "AirPlay Mirroring." This allows users to wirelessly mirror their iPad's display on an HDTV, providing its equipped with an AirPlay capable device (like an Apple TV).

According to a recent report, the popular CoPilot navigation applications will soon be relaunched in new, "premium" versions. As noted by the app's developer, CoPilot Live Premium will feature support for Facebook Places, Wikipedia search and real-time traffic updates.

The Best iPhone Apps Of The Week is published each weekend; a companion piece, The Best iPad Apps Of The Week, is published separately.

According to a recent article, Rovio is planning on adding some location-based features to Angry Birds in a future update, dubbed "Magic."

Rovio's "Mighty Eagle" Peter Vesterbacka recently confirmed that the company's Angry Birds games are downloaded more than one million times each and every day. The news was delivered at Mobile 2.0 Europe - openIDEAS Conference, several days ago.