ConjureBunny Software (http://conjurebunny.com/) has unveiled a new responsive web page design tool for Mac OS X: Landscape. It’s designed to help you build responsive websites that adapt to phone, tablet, and desktop displays.

Landscape sites have automatic Facebook integration, Lightbox support for graphics, and native support for all major graphics formats, including Photoshop files. The tool lets you build web pages by dragging and dropping any type of file (including Photoshop) in a freeform environment to assemble web pages. To add text, just type anywhere. A Desktop/Tablet/Phone switch lets the user change layouts for each page.

Landscape features integrated Google Font support, so if you’re using any of over 600 Google Fonts, it will detect them and embed code in your page so the viewer’s browser will display it properly. Landscape also automatically builds light boxes if you’ve designated any images as Lightbox images. What’s more,, it features tight integration with Facebook, so adding a Facebook image preview to any page is simply a matter of checking off an item in the info window.

The Background and Hidden modes ensure that you don’t accidentally drag background elements around while laying out foreground elements. You can hide elements or drag them past a barrier, and they won’t be rendered on platforms of your choosing.

Landscape has several tools, including a knife for slicing up existing images and websites. The knife will let you take any already built website, and quickly create a new version of it that works on more platforms. The mind mapping tool will let you quickly create site charts, org charts, flow charts, and mind maps.

Landscape requires Mac OS X 10.7 or higher and is being offered at an introductory price of US$40.