I'm so glad you asked, because you motivated me to leap up and replace the second broken spoke. The second broken spoke was adjacent to the first one, of course...and the whole reason I asked for multiple spokes when I got the first one replaced was that I figured the remaining spokes would be pretty stressed after the first one broke. I had a lot of, uh, fun? going through and replacing something like 6-8 spokes on my old Schwinn cruiser when that wheel started to die, and it set the standard for what I expect when spokes start breaking. :-)

Anyway, I don't know the spoke gauge (or how to check), but it's a 32-spoke wheel, so one might think it would be adequate. I'm definitely going to take the wheel back up to Seattle with me in April, because the bike/wheel-builders have a 3-year warranty on the wheels they build. I'm really quite surprised at the trouble this rear wheel has given me, considering that the shop that made the bike is pretty careful overall about the quality of work they do. I have a feeling they'll have good recommendations on how to proceed.