What's New in iScreensaver 4

iScreensaver Designer Version 4 provides support for the next generation of hardware and software: Mac OS X 10.7, Windows 7, and 64-bit CPUs with fast OpenGL graphics cards. All iScreensaver users are encouraged to upgrade.

Version 4.5.0.388 - Released 27 Jun 2012

Release Notes: http://iscreensaver.com/releaseNotes
Download : http://iscreensaver.com/downloads.shtml

Features in Version 4 :

Mac OS X 10.6, 10.7 and Windows 7 (32 and 64 bit).
Quicktime 7 with AVC/H.264 support.
Fast OpenGL image effects.
Adobe Flash Version 11 / ActionScript 3.
Sequence movies, Flash, and images together in any order.
Include hundreds or even thousands of items.
Background audio soundtracks.
Overlay layers provide styled unicode text captions and pictures.
Many image formats including PNG/TIFF with alpha transparency.
Optional unlockable content with flexible key code generation.
Optional user Heads Up Display (HUD) with thumbnail browser, play controls, and audio mute.
Internal HTML5- and XML-based architecture.
Build Single-File-EXE installer for Windows Screensavers
And many, many more…

For more information:
http://iscreensaver.com/features.shtml