Now that Apple has announced upgrades to it's MacBook Air lineup, the previous models have dropped in price significantly. I'm personally using the (older) top of the line model 11.6" version, because it's easy to travel with and mainly for just emails and internet browsing. I tried an iPad, but the limited browser and lack of keyboard made it impossible as a mobile blogger. Having USB ports allows me to download and backup from my Compact cameras.
Do you need the latest model? Even with upgraded horsepower, I don't see myself using these systems for photo or video editing, it's just too small. My version is now discounted about $350 dollars from when I purchased it (not too long ago). So if you're looking for a solid travel system with the longest battery life, and instant on, these older MacBook Air systems are the bees knees..