In my rush to get everything ready for the holidays, I forgot all about a significant update to a really cool application from Rogue Amoeba. The company recently updated Airfoil for Mac.

[ad#Google Adsense 300×250 in story]Airfoil is a Mac application that allows users to send audio to remote speakers. The cool thing is, the remote speakers can be part of any number of devices. For instance, you can send audio from a Mac to iOS devices like the iPhone, iPod touch, or iPad.

You aren’t limited to iOS devices. You can send audio to Windows computers, other Macs, Linux computers, an Apple TV, AirPort Express — you get the idea. You can send audio almost anywhere you want.

Airfoil 4 has a lot of changes — here are just a few:

• Airfoil Speakers can now initiate a connection to Airfoil – with one click, you can receive audio on a remote machine.
• Airfoil Speakers now offers remote control of some applications, enabling you to play, pause, skip forward, and skip back.
• Airfoil Speakers also features a greatly improved interface, showing track titles, album art and other metadata when available!
• Airfoil Video Player’s new Web mode allows you to watch video from sites like Hulu, Netflix, and more, while playing their audio remotely and in sync.
• The updated Instant On component works better than ever to capture audio from running applications, as well as all System Audio.
• Airfoil now sends track titles, artwork, and other metadata to Apple TV and Airfoil Speakers.

You can see a full list of changes, download a demo, or purchase Airfoil for $25 on the company’s Web site.