Skype announced the launch of a new version of Skype for Max OS X in version 5.3, which includes support for Mac OS X Lion and HD video calls.

“Skype 5.3 for Mac OS X is built to work with Apple’s newest desktop operating system, Lion, in addition to being compatible with past versions of OS X going all the way back to Leopard,” says Skype’s Krishna Panicker. “With Skype 5.3 for Mac OS X, you’ll also be able to send and receive HD quality video when talking to your friends and family.”

Skype suggests an upload/download speed of 1.5Mbps for HD Video calls.

Skype just launched version 5.2 for Mac about a month ago, shortly after releasing 5.5 for Windows (with Facebook integration). 5.2 added the ability to share screens while doing group video calls, as well as sharing documents, presentations, and photos.

Last week, Skype announced the 2.1 update for Android, making video chat available on 17 Android devices that it was not previously available for. These include: the Acer A5, HTC Desire, HTC Desire HD, HTC Evo 3D, HTC Evo 4G, HTC Flyer, HTC Incredible S, HTC Sensation, HTC Thunderbolt, LG Revolution, Samsung Droid Charge, Samsung Galaxy S, Samsung Galaxy S II, Samsung Galaxy Tab, Sony Ericsson Xperia mini pro, Sony Ericsson Xperia PLAY, and Sony Ericsson Xperia ray.