It's a universal application. Maybe they'll finally bring the timeline layout to the iPad app, though. The reporter from NYT didn't have a chance to check out the iPad version; only the iPhone version which he said was without redesign. He said nothing about an iPad version. We can hope.
Absolutely, it's so aggravating to have to sit and wait 20 seconds for the app to start up, and then wait 15 seconds every time you want to switch screens or do anything. It's unbearable and annoying.