Both SNUI and phtml have, to the best of my knowledge, no users. Popcon reports no installations (although, with 3 machines reporting, I'm not sure that's so indicative). However, I've never received any communication about any of them.
I am considering making SNUI more widely known, but I'm not keen on it going into a stable release without anyone ever having really tested it. On Colin's advice, I've filed serious bugs on snui and phtml to prevent testing migration, and am hereby requesting the following packages' removal from testing: snui-common snui-server snui-client snui (source) phtml (source and binary) Thanks, - Matt