Just read symboliamag's “How We Survive” on my iPad, a free preview issue of tablet-friendly comics journalism.
As the screenshots above show, it’s very well done. The marriage of comic illustrations with text and audio is interesting, though the user experience is a bit rough at times. (It’s made using the Mag+ platform.)
Other issues cost $2-3. It’s not 99 cents cheap (I’d argue they should lower their price to that just to make it an easier impulse buy), but the stories are much more memorable and fun to read thanks to the audio/visual addition.