It's 2011, seemingly "the year of Social". We have Facetime, Google+ Hangouts/Huddles, Facebook video chat, Twitter and iMessage built into iOS, Messenger built into WP7. It sounds like we're making great progress in improving the way we can communicate with our friends. Super!
Over the last few years, I've picked up a few O'Reilly books on my iPhone from the App Store. It's not particularly fun reading on an iPhone screen (especially pre-iPhone4), but the books are crazy cheap. Like £3 cheap!
When I set my Mac Mini for iPhone development, I was told to backup a key file (.p12) because if I lost it and needed to reinstall, I wouldn't be able to deploy to my iPhone (yikes!). I backed it up as suggested, and made sure I had copies of it all over my Mac, PC and the interwebs.
Up until recently, I've never had an iPod. It wasn't that I didn't like them - I think they're the best looking MP3 players out there. There was one reason, and one reason only that I hadn't bought one - iTunes. On Windows, and it has to be amongst the clunkiest applications from a major software company I've ever used. I'm not sure if it's because of the desire to make it look like a Mac and custom-draw everything, or just sloppy coding. It just always seems clunky and unresponsive, and hogs machine resources.