The last few weeks of carrying a backpack that weighed more than my 2 year old son convinced me to get one. I have been looking at the various netbooks popping up in every store that sells electronics. I had not previously bought one due to high prices or contracts needed to get one with 3g. While in Walmart I saw one for a great price, $278, and I couldn't pass it up. It's Acer Aspire One with…