My mom needs you (and maybe a Nexus 7?)

My mom's beloved Acer Series One netbook just died and she needs something similar or better to replace it. My first thought was a Nexus 7 with keyboard case (which case is best?), but I also wonder whether anyone knows of a good, cheap netbook.

Here are her requirements:

  • Usage: Mainly email, web browsing, and connecting to a camera or SD card to email pictures. Needs a keyboard.
  • Storage: at least 16GB
  • Weight: Must be lighter than 2.5 lbs, lighter the better
  • Screen: 7 - 11 inches
  • Cost:

An SD slot would also be pretty nice to have, but not essential. Any recommendations for my dear mother?