Amazon has today announced that its in-app purchasing service, which is already available on the company’s Kindle Fire tablet and other Android devices, is coming to Mac, PC, and web games. This will allow developers to take advantage of Amazon’s service on those platforms to provide their customers with a new way to purchase additional content using their credit card or virtual Amazon currency.

While Amazon isn’t the first company to offer an in-app purchasing system, its service does come with some advantages that developers may not get from its rivals. One of those advantages is that their content will be available via Amazon.com.

Thanks to affordable offerings like the Amazon Kindle Fire HD and the Google Nexus 7, Android tablets continue to increase their market share and claw away at the iPad’s lead. However, Apple’s tablet remains king of the web, accounting for a whopping 87% of tablet web traffic in North America.

Pulse, the social-news aggregator for Android and iOS, has been updated to version 3.0, and it’s a doozy. On iOS, it’s been upgraded to a universal app, so no more separate versions on your different devices.

The developers behind the app have redesigned things, promising a better, more interactive interface, a ton of new features, and a prettier front end.

Today, independent video chat provider ooVoo, announced a significant update across multiple platforms as well as adding a new Facebook application. ooVoo allows users to HD video chat, text, or make phone calls with up to 12 friends across Android, iPhone, PC, Mac and now also on Facebook. According to Yuval Baharav, Chief Executive Officer, today’s release was a direct result of their over 46 million users: