I'll be purchasing a MBA within the next week or so, and I'm 90% leaning toward the 11". What's causing me to second guess though is the 5hr battery life vs the 7hr for the 13". The specs for the 11" meet all my needs and to be honest, I'm not saying that the 5hr battery won't be good enough. I'm just wondering if there are any new 11" owners out there that wish they had the 7hr battery life, or does the 5hr suffice for most of you?