I have both a MBA and the iPad and lately I've noticed I've just been taking the iPad. If it's a measure trip I can do pretty much everything I need on the iPad from uploading photos and shooting them off to family to checking email and surfing the web. The biggest plus for the ipad is the 3g in the us, i can get online anywhere without having to worry about buying or finding wifi. I have to admit though, if I know I'm going to be typing a lot I would much prefer the MBA which isn't much bigger or heavier.