It's bizarre to me that many blogging platforms still treat blogging as a content-production exercise, when in reality it's a blend of content-producing and content-aggregating. I wish more platforms would build on what Tumblr has done in terms of making aggregation more painless.
Speaking of which, does anyone know of a better app for blogging on iPad? If not, there's a great idea for any iOS Devs. Create a great one, and tons of us would be happy to pay the price of an iWork app or so for one!
I'm sure it can be done (for the majority of cases) without editing any HTML by hand. iOS has text selection, so text styling and linking can work the same way it does on a real computer. For things like image arrangement, that's generally done via CSS by applying a class that already exists. Doesn't seem like there are too many challenges, we just need someone to go and do it and make it look nice.
