Nimbuzz has released a Mac version of their popular IM/VoIP aggregator application. Nimbuzz supports Windows Live Messenger (MSN), Yahoo, ICQ, AIM, Google Talk, Facebook, MySpace, and more.

Push Notification is a new feature in the new iPhone 3.0. This feature allows Nimbuzz to run in the background even when you’re not logged on. Although you may be logged out of Nimbuzz, it keeps you in “online” status so your buddies can contact you, and you can choose whether to respond to an alert notifying you that someone is trying to chat, call, send you files, etc.

It does this by emiting a beep sound and a pop-up window, telling you that your friend is trying to contact you. Once you click on that pop-up window, it’ll log you back into fring and take you straight to the relevant window. You can enable the option for fring on the phone.

The Nimbuzz software and Text Message Service are completely free to download and install. All PC calls using Nimbuzz are also free. Mobile phone calls from Nimbuzz are charged at local fixed line calling rates or deducted as part of your monthly local minutes package. Nimbuzz is looking to provide these mobile  calls for free soon as they launch their Mobile VOIP solution.

Netherlands-based Nimbuzz has raised $15 million in a second round led by Naspers/MIH, with Nimbuzz’s other major existing investor Mangrove Capital Partners also participating. It’s already had $10 million from Mangrove (the original Skype investor). Apparently deals with 10 major social networks and three operators are already on the table. The latter see these kinds of apps as a way of boosting data use and therefore revenues. The cash will be used to extend to Windows Mobile, iPhone and Android. They are looking at a million registered mobile users so far.

Nimbuzz offers free mobile VoIP, conference calling, IM and group chat and photo and file sending across multiple IM communities, including Skype, MSN, Google Talk, Yahoo!, AIM, Jabber and ICQ, plus 23 social networks, including apps/widgets for Facebook and Myspace.

Nimbuzz sets put to be an all-in-one communication software. Aside from its own communication network, Nimbuz also supports instant messaging and voice calls for popular clients such as, Skype, Google Talk, Windows Live Messenger, Yahoo Messenger, AIM and Jabber.

Recent additions to the Nimbuzz applications are support for true VoIP when making voice calls on S60 devices. Nimbuzz has also created a Communicator widget which allows people to contact mobile Nimbuzz users from a web page.

Nimbus VoIP phone systems are designed for small business organizations with 1 – 32 phones per location.  Nimbus is a voip phone system service like none other experienced before. Nimbus VoIP is a total package that gives you access to free local area calling and free long distance minutes. Small businesses can enjoy the simplicity and harmony of a completely streamlined solution. Nimbus allows total control over all phone systems features and calls made over any broadband system. Here are a few of my favorite things:

1. designed to be user friendly and flexible

2. features plug and play, allowing phone calls to be made anywhere there is broadband web access

3. web control panels allow you to re-route extension and manage voice mail

4. simple click to dial

5. reduces upfront costs

6. unlimited US calling

7. free calling to any other Nimbus VoIP phone in the world

8. good for any business, whether large or small

9. no contracts

10. no per minute fees