You will find a vast array of digital magazines here http://digitalmagazineworld.com/ go to technology providers and services section.
Not sure just how many were created using Adobe InDesign, however I would imagine quite a few.
What software you use for creation is not that significant for Digital Publishing
These two paragraphs from the same site I consider to be of more significance.
Traditional magazines and web sites offer advertising space that we have come to expect, from the half page static ad associated with traditional publishing to the annoying banner ad or pop up associated with web sites.
Advertising in the world of digital publishing takes on a whole new dimension and what you have to consider here is your reader and the available space on the screen that is in front of them, we consider this key to the future and advancement of Digital Publishing, design and layout are crucial, get this right and you will realise the benefits digital publishing can bring to your publication, your advertisers, your readers, your brand, and continued success
Most digital magazine services work from the PDF, not the raw InDesign files, for the same reason that the printer does: to ensure things don't move. Whether that PDF comes from InDesign, Quark, etc. is pretty much immaterial to us.
Are you referring to the sneak peeks of InDesign CS4? InDesign CS4 is supposed to have some pretty intense flash support and the ability to export digital editions complete with page-flipping transitions, links, etc.
Marcus is right. Ultimately, it makes no difference what format the source files were in from a digital hosting point of view. But to answer your question this is a digitally hosted copy of a magazine that I was editor of for four years which we produced using InDesign. There are other editions to view under the ARCHIVE menu as well.
We found InDesign to be an excellent production environment, if not a little awkward (the user interface) at first. It's plusses are that it is very tightly integrated with the other Adobe apps which eliminates a lot of prepress concerns. Output to pdf is virtually flawless. In the CS3 version, the VersionCue (a production library system) and Bridge (Image preview and file management) work extremely well and are very efficient for a magazine with a small staff and moderate content management needs. They were quite buggy in the CS2 version, however.
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