I'm curious about that too. What limitations does Android have that make pivoting hard to do? Why weren't they working on both an Android and iOS app, no to mention WebOS and WP7. It does seem there are a lot of options out there, so there must be a very good reason not to have utilized those platforms. Does iOS provide some APIs that make this type of online purchasing model so much easier than other platforms that it's not even worth investing in something else?
agree, I think there biggest failure is not attempting to move to another platform.
Theres plenty of ebook stores that do well on Android.. Kindle, Aldiko, & Nook all do well and I use all of them when there are deals, just like I use the Amazon and Google marketplace. When deals appear on apps/books I like, I buy. The content is more valuable than the actual reader.
"I was shocked to find that iOS makes you enter a password before buying stuff - what kind of a PITA is that?"
On webOS (myself, wife, daughter) I had the option of requiring a password every time an app was purchased or just letting my 13 year old daughter rack up whatever credit card charges she felt like on her phone. I don't consider it a PITA to enter a password, I consider it a security feature. I am shocked that you imply that android does not have such a requirement and I feel further vindicated in choosing webOS over android.