There are a few things out there but non ideal. I ran across this one but I'm not sure if the pockets are big enough for a portable amp. Maybe if we request a special "Audiophile Edition" they will make one for us. Other than the pockets everything else looks really good. I specially like the option of both a handle and a shoulder strap and the fact that it stands up straight due to a solid base with metal feet.
Some people are commenting that it looks like a purse but that's only the quilted model. There is a cloth model (cheapest) and a plain leather model. The price is a little high but you get a lot of things you don't get with the other options out there like a nice shoulder strap, a stand-up straight design and all the pockets. Again, my only beef is with the lack of a pocket big enough to accommodate a small DAC/AMP like the audioengine D1.