There are many reasons to have a progressive tax structure (and many reasons not to). Being successful at your business is not one of them. To argue that the owner's blood, sweat, and tears is secondary to the government's role in providing infrastructure and therefore they should pay a higher tax RATE is insulting.
The argument Obama was making is poor and downright terrible politically. Who's running his campaign, anyway?
The vast majority of new businesses fail in this country. So if you have 2 businesses in a business park. One is wildly successful and the other goes bankrupt after a couple of years. The same road runs in front of both businesses. They both have the same mail service. They both have the same internet piped into their office suites. Who is PRIMARILY responsible for the business that succeeds? Is it the government or the owner?
If Amazon and B&N can still offer more variety of books at a lower price then more power to them. Apple has made no attempts to prevent eBooks from other sources from being read on the iPad.
The problem is the 6 largest publishers got together and decided that they would only use the agency model with a 30% profit for the retailer. End of story or else the retailer can go suck rocks. It's not like 1 or 2 publishers did this independantly. All 6 agreed to the exact same terms at the exact same time when Apple made the exact same agreement with all 6. Amazon didn't have a choice at that point.
If you look at the complaint, the DOJ has plenty of emails and phone conversations that show that they definitely colluded together to do this.
This happened in the oil embargo of the late 70's. OPEC decided to limit production. Saudi Arabia limited theirs and drove prices up. All the other OPEC nations were pumping like mad to make as much profit as possible but since Saudi Arabia was the largest producer, it kept prices high. Finally Saudi Arabia got sick of it and pumped like mad to punish the other cheaters and drove down prices even lower than they were before.
Embargos and price fixing usually don't last long because of the incentive to cheat. If you look at the complaint, there was a lot of discussion between the different publishers just to make sure nobody was going to cheat and cut a different deal with Apple.
iOS5 has added the split keyboard like WP7. It has also added twitter integration like WP7 (though in a terrible way). iMessage has copied features from WP7. Auto-uploading of pictures was added much like WP7 already has. Made the volume button a hardware camera button along with a lock screen shortcut to camera which are both features that WP7 had from the beginning.
It's really not that big of a deal. Everyone takes what is working from each other and incorporates it in their own way. The point is that there are enough features that are really good in WP7 that Android and Apple feel the need to copy. It definitely shows it to be a contender.