I know Jackie and Heath are vey busy with everything else they are doing and this would be alot of work in the "coding" department but I really think this is a good idea and so is the sheet cake gallery idea further down in this forum section.. I vote yes for both.
I think having a gallery dedicated to cupcakes is important because not everyone on here uses keywords when uploading, and not everyone gives a description so when you search Cupcakes you don't get ALL the cupcakes on the site and we could be missing some really beautiful cupcakes lol. I for one hate when I go view a picture and see it has no description and no keywords nothing at all written about the cake at all and then when asked in comments... they still don't give any details... I don't know I guess I just think it would be easier to find all the cupcakes if they were in the same section.
I've recently made a Cupcakes section on my website so that all the cupcakes are in one place that way if someone is looking for just cupcakes they don't have to go to every other photo page looking for them.