For my part, I decided to order this one here:
Tuff-Luv Embrace Case
I wasn't too sure as I really like holding the Kobo "naked" in my hands to have as less weight and heft as possible, and I find all these cases often just add bulk to the device. But I haven't been able yet to find a nice-looking, hard travel case that I could just slip the Glo in it. So if it's going to stay in the case at all times, I figured this one seems right, with this holding strap at the back for your hand.