Yes, I am the only one working on this. I even made my own icons.
Thanks for the support. I am planning to let people add articles to their 'favourites' tab, which will save the article and all images inside it to the device. Downloading is fast, and stuff is cached and updated in the background to make it even faster.
I am planning on having it a paid app (cheap - tier 1 or tier 2), because I can't afford to have it free. I may introduce an ad-supported free version that only reads news when connected to the network (i.e. no caching, no offline articles, no buyer's guide..etc). Still, because it's paid, I'm making sure its absolutely the best way to read MacRumors on your iPhone - adding real quality.
This is the icon I made, it's the best I could do with 30 minutes and a copy of Photoshop. EDIT: And a pic of the app now. I'm using some CC tab icons as placeholders (CC does not allow commercial apps). Note the airplane mode icon indicating that this is all running offline.