Let's say you're a writer in need of a cheap portable work machine. Your computing needs mainly include word processing and Wi-Fi web browsing (including the ability to switch between web research and writing without too much hassle). You're eternally strapped for cash but might be able to scrape a few hundred bucks together to make this happen. Do you go with: 1. A iPad2 2. An old, used G4 iBook or Powerbook 3. A new but cheap PC netbook 4. Other??? Thanks!