I've considered > too, but I keep wanting to use < and > in names, like for XML, comparators, and very special-purpose conversions (a->b). Conversions can live without it, but I don't know about comparators and XML.
Another idea is /. Arc uses / in variable names, but I can't help but think that 'w-stdout would be just as iconic as 'w/stdout. There could be some potential. ^_^