Much has been said over the past few years about the future of publishing and content on the web. Terms like “transmedia storytelling” and “cross-platform publishing” are tossed around like giant balls of cotton candy — delicious, fluffy but, ultimately, without much substance. And while certain platforms have made multimedia storytelling possible for publishers and visual artists, none offers a truly holistic proposition.

This week, the launch of projeqt offers hope for a platform that does it all and then some. Dubbed a “creative storytelling platform,” it’s Tumblr meets Slideshare meets Cargo Collective — only a more flexible Tumblr, a sleeker Slideshare and spanning more media than Cargo Collective. And if this isn’t enough of a treat, it’s also device-agnostic — built entirely in HTML5 for cross-platform compatibility and specifically optimized for iPad and iPhone, projeqt is part publishing CMS, part portfolio-builder, part something else entirely.

projeqt is simple, intuitive and highly social, playing nice with other platforms by allowing you to mesh together text, image, video and feeds within the same projeqt, so you can embed your Vimeo uploads, post photos from your Flickr stream, import your blog’s RSS feed and even your tweets — in other words, it’s a creative polyglot that invites you to tell your story, whatever creative languages it may be in. (The reader experience is equally flexible, allowing for seamlessly switching between line, grid and full-screen view.)

Great stories keep us riveted to the page. Or the screen (whatever shape or size it happens to come in.) Great stories get shared and are retold time after time after time. Great stories always leave us wanting more. Projeqt gives you the tools and technology to tell your story. It provides a robust architecture, with unprecedented flexibility and possibilities.”

We’re thrilled about the creative possibilities with projeqt. If you’re a cross-media creative type who writes, designs, does photography and has a significant Twitter presence, you can pull all of these personalities into one cohesive portfolio. If you’re an educator, you can use it as sleek storage for your research. If you’re a content curator, you can put together digital exhibitions around specific topics. In fact, to get a first-hand feel for projeqt‘s capabilities, we’ve curated a thematic projeqt about data visualization — take a peek to see how it all works.

Though projeqt is currently in beta and invite-only, we’ve secured a limited number of invites for our newsletter readers — to request one, subscribe to our free weekly newsletter if you haven’t already, then shoot us an email with “projeqt” in the subject line. [UPDATE: We’re no longer taking names (though we’re still kicking ass) but you can still sign up for the regular waitlist on the projeqt website.] Meanwhile, follow projeqt on Twitter and Facebook for updates.