As Beanoir does, I also do run CS6 on a MBA 11.
For photo work, it seems to do fine, but as indicated previously, if you need the horsepower, get a bigger horse.
If you need to 'get by' away from the powerhouses, maybe it will do just fine.
I hook my MBA to a Dell P2412H where 24" is a heck of a lot to do photo work on than the 11. 😀
The only time I've bogged down the MBA so far is with iPhoto and 2500 pictures 🙂
One other thing though, I have the 128GB drive, and wish I had bigger... (Those 2500 photos are 13.6GB alone).
My 2c worth.